2017 Crop Protection Guide for Tree Fruits in Washington

Crop Protection Guide

Thursday, November 23, 2017

Crop Protection Guide - Browse Results

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Apple dormant
San Jose scale
ProductRecommendationREIPHIMOA
petroleum oil- dormant 6117per acre: 1.5 % v/v12 hnone listed
Efficacy: ++++
Comments
petroleum oil- dormant: See Horticultural Mineral Oils under Special Programs
Apple delayed-dormant
Apple mildew
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 82per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
sulfur, dry flowable 83per acre: See label24 hnone listedM2
Efficacy: not rated
trifloxystrobin (Flint 50W) 84per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
lime sulfur/calcium polysulfide 6203per acre: See label48 hnone listed
Efficacy: not rated
cyprodinil+difenoconazole (Inspire Super) 6621per acre: 12 fl oz12h14d9,3
Efficacy: not rated
Comments
Flint and Sovran: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides (mode 11) labeled for use on pome fruits.
cyprodinil+difenoconazole: Inspire Super contains an active ingredient similar to the one found in Vangard 75WG. These two products should not be used in rotation.
lime sulfur/calcium polysulfide: This material is toxic to pest and predatory mites; destroying apple rust mites, the alternate prey of predatory mites, may predispose the orchard to later spider mite problems.
Apple delayed-dormant
Apple scab
ProductRecommendationREIPHIMOA
captan (Captan 50WP) 87per acre: 6 lb24 h0 dM4
Efficacy: not rated
mancozeb (Dithane M45 80W) 91per acre: 6 lb24 h77 dM3
Efficacy: not rated
sulfur, dry flowable 92per acre: See label24 hnone listedM2
Efficacy: not rated
trifloxystrobin (Flint 50W) 95per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
ziram (Ziram 76DF) 97per acre: See label48 h14 dM3
Efficacy: not rated
lime sulfur/calcium polysulfide 6162per acre: See label48 hnone listed
Efficacy: not rated
cyprodinil+difenoconazole (Inspire Super) 6622per acre: 12 fl oz12h14d9,3
Efficacy: not rated
Comments
captan: Do not use captan on pink through blossom stages. When possible, tank-mix captan with other single-site fungicides to help reduce fungicide resistance development.
mancozeb: Do not apply after bloom. See label for restrictions.
Flint and Sovran: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides (mode 11) labeled for use on pome fruits.
cyprodinil+difenoconazole: Inspire Super contains an active ingredient similar to the one found in Vangard 75WG. These two products should not be used in rotation.
lime sulfur/calcium polysulfide: This material is toxic to pest and predatory mites; destroying apple rust mites, the alternate prey of predatory mites, may predispose the orchard to later spider mite problems.
Apple delayed-dormant
Cutworms
ProductRecommendationREIPHIMOA
indoxacarb (Avaunt 30DG) 103per acre: See label12 h14 d22A
Efficacy: not rated
methoxyfenozide (Intrepid 2F) 104per acre: See label4 h14 d18A
Efficacy: not rated
Comments
Cutworms: Apply thoroughly to lower trunk and base of tree.
Apple delayed-dormant
European red mite
ProductRecommendationREIPHIMOA
petroleum oil- dormant 105per acre: 1.5 % v/v12 hnone listed
Efficacy: +++(+)
Comments
petroleum oil- dormant: Oil is indispensible for an integrated mite control program. See also information in Special Programs, Horticultural Mineral Oils, Dormant or Delayed Dormant Use.
Apple delayed-dormant
Grape mealybug
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 6059per acre: 4 lb4 d21 d1B
petroleum oil- dormant 6059per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
chlorpyrifos (Lorsban Advanced) 6060per acre: 4 pt4 dNL1B
petroleum oil- dormant 6060per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
azinphos methyl (Guthion 50WP) 6061per acre: 2-3 lb14 d14/21 d1B
petroleum oil- dormant 6061per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
Comments
petroleum oil- dormant: Oil is indispensible for an integrated mite control program. See also information in Special Programs, Horticultural Mineral Oils, Dormant or Delayed Dormant Use.
Apple delayed-dormant
Aphid eggs, woolly apple aphid
ProductRecommendationREIPHIMOA
chlorpyrifos (Lorsban Advanced) 110per acre: 4 pt4 dNL1B
petroleum oil- dormant 110per acre: 1.5 % v/v12 hnone listed
Efficacy: ++++
Comments
Aphid eggs, woolly apple aphid: Lorsban plus oil at the delayed dormant timing has been shown to provide summer-long suppression of woolly apple aphid. Bee caution: See bee hazard section. Do not allow spray or drift to reach blossoms on weeds, cover crops, or early flowering crops nearby.
petroleum oil- dormant: Oil is indispensible for an integrated mite control program. See also information in Special Programs, Horticultural Mineral Oils, Dormant or Delayed Dormant Use.
Apple delayed-dormant
San Jose scale
ProductRecommendationREIPHIMOA
petroleum oil- dormant 117per acre: 1-1.5 % v/v12 hnone listed
chlorpyrifos (Lorsban Advanced) 117per acre: 4 pt4 dNL1B
Efficacy: ++++
methidathion (Supracide 2E) 118per acre: 3 qt3 dnone listed1B
petroleum oil- dormant 118per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
petroleum oil- dormant 119per acre: 1-1.5 % v/v12 hnone listed
pyriproxyfen (Esteem 35WP) 119per acre: 4-5 oz12 h45 d7C
Efficacy: not rated
petroleum oil- dormant 6318per acre: 1-1.5 % v/v12 hnone listed
Efficacy: ++++
Comments
petroleum oil- dormant: Oil is indispensible for an integrated mite control program. See also information in Special Programs, Horticultural Mineral Oils, Dormant or Delayed Dormant Use.
Apple prepink
Apple mildew
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 125per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
trifloxystrobin (Flint 50W) 126per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
Bacillus pumilus strain QST 2808 (Sonata) 6026per acre: 2-4 qt4 h0 d
Efficacy: not rated
lime sulfur/calcium polysulfide 6161per acre: See label48 hnone listed
Efficacy: not rated
tebuconazole+trifloxystrobin (Adament 50WG) 6423per acre: 4-5 oz12h75d3, 11
Efficacy: not rated
cyprodinil+difenoconazole (Inspire Super) 6594per acre: 12 fl oz12h14d9,3
Efficacy: not rated
Comments
Apple mildew: DO NOT APPLY lime sulfur or calcium polysulfide WHEN TEMPERATURES EXCEED 75°F. Other fungicides may be used at higher temperatures. Treat mildew-susceptible varieties only.
tebuconazole+trifloxystrobin: Apply onlt one Group 3-Fungicide at same growth stage.
Flint and Sovran: Flint and Sovran are from the same chemical group. To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
cyprodinil+difenoconazole: Inspire Super and Vangard are from same chenical group. Use one of them ONLY.
lime sulfur/calcium polysulfide: Toxic to both pest and predatory mites, and may predispose the orchard to later mite problems.
kresoxim-methyl: See note for Flint. Apply ONLY one of these two fungicides.
Apple prepink
Apple scab
ProductRecommendationREIPHIMOA
captan (Captan 50WP) 130per acre: 6 lb24 h0 dM4
Efficacy: not rated
kresoxim-methyl (Sovran 50WG) 133per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
mancozeb (Dithane M45 80W) 134per acre: 6 lb24 h77 dM3
Efficacy: not rated
sulfur, dry flowable 135per acre: See label24 hnone listedM2
Efficacy: not rated
trifloxystrobin (Flint 50W) 138per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
ziram (Ziram 76DF) 140per acre: See label48 h14 dM3
Efficacy: not rated
lime sulfur/calcium polysulfide 6204per acre: See label48 hnone listed
Efficacy: not rated
cyprodinil+difenoconazole (Inspire Super) 6595per acre: 12 fl oz12h14d9,3
Efficacy: not rated
Comments
Apple scab: Start scab sprays no later than Delayed-Dormant.
mancozeb: Do not apply after bloom. See label for restrictions.
Flint and Sovran: Flint and Sovran are from the same chemical group. To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
cyprodinil+difenoconazole: Inspire Super and Vangard are from same chenical group. Use one of them ONLY.
lime sulfur/calcium polysulfide: Toxic to both pest and predatory mites, and may predispose the orchard to later mite problems.
kresoxim-methyl: See note for Flint. Apply ONLY one of these two fungicides.
Apple prepink
Cutworms
ProductRecommendationREIPHIMOA
indoxacarb (Avaunt 30DG) 146per acre: See label12 h14 d22A
Efficacy: not rated
methoxyfenozide (Intrepid 2F) 147per acre: See label4 h14 d18A
Efficacy: not rated
Comments
Cutworms: Apply thoroughly to lower trunk and base of tree.
Apple prepink
Grape mealybug
ProductRecommendationREIPHIMOA
buprofezin (Centaur 70W) 6119per acre: 34.5 oz12 h14 d16
Efficacy: not rated
thiacloprid (Calypso 4F) 6120per acre: 8 fl oz12 h30 d4A
Efficacy: not rated
acetamiprid (Assail 70WP) 6121per acre: 3.4 oz12 h7 d4A
Efficacy: not rated
Apple prepink
Aphids
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 6012per acre: 1.7 oz12 h7 d4A
Efficacy: not rated
Comments
Aphids: this recommendation will be effective on apple aphid, apple grain aphid, and rosy apple aphid, but less so on woolly apple aphid
Apple prepink
Lygus, stink bugs
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 156per acre: 4 lb4 d21 d1B
Efficacy: not rated
Apple prepink
Leafrollers (Pandemis)
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 158per acre: 1-2 lb4 h0 d11B2
Efficacy: +++
Comments
Leafrollers (Pandemis): While too early for obliqebanded leafrollers, this timing is appropriate for Pandemis
Bacillus thuringiensis subsp. kurstaki: Bts are stomach poisons so complete coverage is very important for control. Two or three applications are usually required. Apply when forecasts predict a warm weather pattern, above 65 degrees, for 3 or more days.
Apple pink
Apple mildew
ProductRecommendationREIPHIMOA
lime sulfur/calcium polysulfide 161per acre: See label48 hnone listed
Efficacy: not rated
kresoxim-methyl (Sovran 50WG) 165per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
trifloxystrobin (Flint 50W) 166per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
Bacillus pumilus strain QST 2808 (Sonata) 6079per acre: 2-4 qt4 h0 d
Efficacy: not rated
cyprodinil+difenoconazole (Inspire Super) 6596per acre: 12 fl oz12h14d9,3
Efficacy: not rated
Comments
Apple mildew: For best results, wait until a few king blossoms are open.
Flint and Sovran: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
cyprodinil+difenoconazole: Do apply after or before Procure 480SC or Rally 40WSP to minimize fungicide resistance in powdery mildew and other non-target pathogens.
Bacillus pumilus strain QST 2808: Organic fungicide
kresoxim-methyl: See note for Flint.
lime sulfur/calcium polysulfide: Toxic to rust mites, the primary alternate prey of predatory mites. Also toxic to spider mites and predatory mites.
Apple pink
Apple rust mite
ProductRecommendationREIPHIMOA
fenbutatin oxide (Vendex 50WP) 168per acre: 1-1.5 lb48 h14 d12B
Efficacy: +++(+)
spirodiclofen (Envidor 2SC) 6123per acre: 18 fl oz12 h7 d23
Efficacy: not rated
Comments
Apple rust mite: Apply when problem exists on Golden Delicious.
Apple pink
Apple scab
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 174per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
mancozeb (Dithane M45 80W) 175per acre: 6 lb24 h77 dM3
Efficacy: not rated
sulfur, dry flowable 176per acre: See label24 hnone listedM2
Efficacy: not rated
trifloxystrobin (Flint 50W) 179per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
ziram (Ziram 76DF) 6085per acre: See label48 h14 dM3
Efficacy: not rated
lime sulfur/calcium polysulfide 6205per acre: See label48 hnone listed
Efficacy: not rated
cyprodinil+difenoconazole (Inspire Super) 6597per acre: 12 fl oz12h14d9,3
Efficacy: not rated
Comments
mancozeb: Do not apply after bloom. See label for restrictions.
Flint and Sovran: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
cyprodinil+difenoconazole: Do apply after or before Procure 480SC or Rally 40WSP to minimize fungicide resistance in powdery mildew and other non-target pathogens.
kresoxim-methyl: See note for Flint.
lime sulfur/calcium polysulfide: Toxic to rust mites, the primary alternate prey of predatory mites. Also toxic to spider mites and predatory mites.
ziram: Beside having some activity against scab, Ziram may reduce bull's eye rot inoculum persisting on cankers from previous season.
Apple pink
Campylomma
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 185per acre: 1.7-3.4 oz12 h7 d4A
Efficacy: not rated
Comments
Campylomma: If campylomma nymphs are detected prior to bloom apply treatment immediately. Apply in late evening or at night.
acetamiprid: Use highter rates for high population numbers.
Apple pink
Codling moth
ProductRecommendationREIPHIMOA
CM pheromone dispensers 186per acre: See labelnone listednone listed
Efficacy: not rated
Comments
Codling moth: Pheromone treatments typically need to be supplemented with insecticides to achieve acceptable levels of control. Any insecticide recommended for control of codling moth can be used as a supplement to pheromone treatments. Timing of different insecticides used as supplements for codling moth control in pheromone treated orchards depends on the stages they impact, eggs or larvae. Refer to the Petal-fall, 14-28 days after Full Bloom, and Late Spring and Summer timing periods for specific recommendations.
CM pheromone dispensers: Most apple growers in Washington use some kind of hand-applied pheromone dispenser to help control codling moth. The number of dispensers per acre will depend on the product used and pest pressure. Hand-applied pheromone dispensers must be in place before the first moth flight, that is prior to bloom. Dispensers should be placed within the top 2 feet of the tree canopy. It is strongly recommended that full label rate of any hand-applied pheromone dispenser be used. Reducing the rate of dispensers per acre will reduce efficacy and result in more damage from codling moth or require the use of more insecticides to achieve acceptable control. Different kinds of hand-applied pheromone dispensers release pheromone at different rates over time. Some dispensers may need to be reapplied late in the season or supplemented with insecticides if pheromone runs low.

Some apple growers are using aerosol pheromone emitters (CheckMate CM-O Puffer and Isomate CM MIST) to control codling moth. This technology is used at a rate of one pheromone emitter per acre. WSU research has shown that the aerosol emitter technology works as good as a full rate (400 dispensers per acre) of a hand-applied dispenser technology.  However, the borders of orchards need to be treated with hand-applied pheromone dispensers to cover gaps resulting from the number of aerosol emitters that are applied per acre.  
Apple pink
Leafrollers (Pandemis, Obliquebanded)
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 189per acre: See label4 h0 d11B2
Efficacy: +++
chlorantraniliprole (Altacor 35WDG) 6656per acre: 4.5 oz4 h5 d28
Efficacy: not rated
methoxyfenozide (Intrepid 2F) 6657per acre: 16 fl oz4 h14 d18A
Efficacy: +++
flubendiamide (Belt 4SC) 6658per acre: 5 fl oz12 h14 d28
Efficacy: not rated
Comments
Leafrollers (Pandemis, Obliquebanded): Pre-bloom applications of pesticides at this timing can be effective and will also conserve natural enemies for leafroller and biological control agents of other pests, such as aphids.  Consult the WSU Decision Aid Sytem models for leafrollers for optimal timing.  

If Bt is used follow recommendations on weather periods when this pesticides has the best chance to work effectively.   
Bacillus thuringiensis subsp. kurstaki: Bts are stomach poisons so complete coverage is very important for control. Two or three applications are usually required. Apply when forecasts predict a warm weather pattern, above 65 degrees, for 3 or more days.

Apple pink
Rosy apple aphid
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 6013per acre: 1.7 oz12 h7 d4A
Efficacy: not rated
Comments
acetamiprid: Use highter rates for high population numbers.
Apple bloom
Campylomma
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 6041per acre: 1.7-3.4 oz12 h7 d4A
Efficacy: not rated
Comments
Campylomma: While the listed materials will kill Campylomma at any time, applications must go on at pink or bloom to prevent damage -- petal fall is too late. Treat as soon as the action threshold for a given cultivar is reached (see Orchard Pest Management Online for more information).
acetamiprid: Use higher rates for high populations.
Apple bloom
Fire blight
ProductRecommendationREIPHIMOA
oxytetracycline 6231per acre: See label12 h60 d41
Efficacy: not rated
Comments
Fire blight: There is a risk of fire blight infection any time there are flowers on the tree, the weather is warm, and wetting occurs. Watch for and protect secondary blossoms during the three weeks after petal fall, which is the most common time of fire blight infection.

Early bloom. Apply biologicals (Blossom Protect) during early bloom. If fire blight was in the orchard last year apply two applications of the biological. Reapply biological a second time if lime sulfur was applied (Lime sulfur is antimicrobial and kills biological).

Full bloom to petal fall. Watch the model. If an infection event occurs, apply an antibiotic as soon as possible, but within 24 hours of infection (usually wetting of flowers). Repeated antibiotic sprays may be necessary during extended high or extreme risk periods. Best results are obtained when applied within 24-hour window before flower wetting during a high infection risk period. Beneficial only for flower infection prevention. Product used must contact the interior of the flowers in sufficient water and approved wetting agent to completely wet the interior. One pound of any 17% oxytetracycline product per 100 gallons gives a 200 ppm solution. Kasugamycin is another effective antibiotic. Some trials have shown that a full rate of Kasumin and a half rate of oxytetracycline provides excellent control. Applications of less than 100 gal/A can be effective on small trees if flower interiors are well covered, but do not drop the ppm below 200 (oxytetracycline). Application by ground equipment on each row is highly recommended. Application of antibiotics by aircraft is not recommended. Many fire blight bacteria in the Pacific Northwest are resistant to streptomycin, another registered antibiotic.

Organic. Prebloom. Fixed copper sanitation if fire blight was in the orchard last year. Early bloom. Lime sulfur plus oil.  One to two applications of biologicals (Blossom Protect). Reapply after lime sulfur which is antimicrobial. Depending on the cultivar russet risk and the CougarBlight model risk follow with Bacillus subtilis (Serenade Optimum) (most fruit safe) every 2-5 days during flower/petal fall or copper hydroxide/octanoate (Cueva/Previsto) every 5 to 6 days (This option is less fruit safe for russet).

Apple bloom
Leafrollers (Pandemis, Obliquebanded)
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 195per acre: See label4 h0 d11B2
Efficacy: +++
methoxyfenozide (Intrepid 2F) 196per acre: 16 fl oz4 h14 d18A
Efficacy: +++
Comments
Leafrollers (Pandemis, Obliquebanded): If planning to apply insecticides for control of these pests post-bloom then insecticide treatments should not be applied at this time.  
methoxyfenozide: Some leafroller populations have developed resistance to Intrepid and in these situations the level of control can be significantly reduced.
Apple bloom
Codling moth
ProductRecommendationREIPHIMOA
CM pheromone dispensers 197per acre: See labelnone listednone listed
Efficacy: not rated
Comments
Codling moth: Pheromone treatments typically need to be supplemented with insecticides to achieve acceptable levels of control. Any insecticide recommended for control of codling moth can be used as a supplement to pheromone treatments. Timing of different insecticides used as supplements for codling moth control in pheromone treated orchards depends on the stages they impact, eggs or larvae. Refer to the Petal-fall, 14-28 days after Full Bloom, and Late Spring and Summer timing periods for specific recommendations of supplemental insecticides.
CM pheromone dispensers: Most apple growers in Washington use pheromones to help control codling moth. Pheromone dispensers must be in place before the first moth flight, that is prior to bloom. The number of dispenser units per acre will depend on the product used and pest pressure.

Hand-applied dispensers should be placed within the top 2 feet of the tree canopy. It is strongly recommended that full label rate of any hand-applied pheromone dispenser be used. Reducing the rate of hand-applied dispensers per acre can reduce efficacy and result in more damage from codling moth or require the use of more insecticides to achieve acceptable control. 

Some apple growers are using aerosol pheromone emitters (CheckMate CM-O Puffer and Isomate CM MIST) to control codling moth. This technology is used at a rate of one pheromone emitter per acre. WSU research has shown that the aerosol emitter technology works as good as a full rate (400 dispensers per acre) of a hand-applied dispenser technology.  However, the borders of orchards need to be treated with hand-applied pheromone dispensers to cover gaps resulting from the number of aerosol emitters that are applied per acre.

Apple petal-fall
Apple mildew
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 199per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
sulfur, dry flowable 201per acre: See label24 hnone listedM2
Efficacy: not rated
trifloxystrobin (Flint 50W) 204per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
Bacillus pumilus strain QST 2808 (Sonata) 6029per acre: 2-4 qt4 h0 d
Efficacy: not rated
lime sulfur/calcium polysulfide 6290per acre: See label48 hnone listed
Efficacy: not rated
cyprodinil+difenoconazole (Inspire Super) 6598per acre: 12 fl oz12h14d9,3
Efficacy: not rated
Comments
Flint and Sovran: Flint and Sovran are from the same chemical groups. To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
lime sulfur/calcium polysulfide: Do not apply lime sulfur if temperatures will exceed 75°F within 3 days of application.
kresoxim-methyl: Sovran and Flint are from the same chemical groups. To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
Apple petal-fall
Apple scab
ProductRecommendationREIPHIMOA
captan (Captan 50WP) 208per acre: 6 lb24 h0 dM4
Efficacy: not rated
kresoxim-methyl (Sovran 50WG) 211per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
sulfur, dry flowable 213per acre: See label24 hnone listedM2
Efficacy: not rated
trifloxystrobin (Flint 50W) 216per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
ziram (Ziram 76DF) 218per acre: See label48 h14 dM3
Efficacy: not rated
Comments
captan: Do not use captan during pink through blossom stages.
Flint and Sovran: Flint and Sovran are from the same chemical groups. To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
kresoxim-methyl: Sovran and Flint are from the same chemical groups. To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
Apple petal-fall
Bull's eye rot
ProductRecommendationREIPHIMOA
ziram (Ziram 76DF) 221per acre: See label48 h14 dM3
Efficacy: not rated
captan (Captan 50WP) 6016per acre: 6 lb24 h0 dM4
Efficacy: not rated
Comments
Bull's eye rot: Use one of these materials only if scab spray is NOT used.
captan: Do not use captan during pink through blossom stages.
Apple petal-fall
Codling moth
ProductRecommendationREIPHIMOA
methoxyfenozide (Intrepid 2F) 222per acre: 16 fl oz4 h14 d18A
Efficacy: +++
pyriproxyfen (Esteem 35WP) 223per acre: 4-5 oz12 h45 d7C
Efficacy: +++
novaluron (Rimon 0.83EC) 224per acre: 30-50 fl oz12 h14 d15
Efficacy: +++(+)
chlorantraniliprole (Altacor 35WDG) 6234per acre: 4.5 oz4 h5 d28
Efficacy: ++++
spinetoram (Delegate 25WG) 6389per acre: 7 oz4 h7 d5
Efficacy: ++++
Comments
Codling moth: These products act as ovicides (kill eggs) against codling moth. They should be applied between 225-275 degree days from January 1st using the codling moth degree day model (see the new codling moth model on the IPM Decision Aids System web site - http://das.wsu.edu/).  The approximate plant stage of development is petal fall.

When these products are used at this time they will also control leafroller larvae (see specific recommendations under leafroller). If one of these products is used at this time of year the first larvicide application against codling moth should be delayed to 525 degree days.
chlorantraniliprole: Altacor is highly effective against leafroller larvae and, at this treatment timing, has added value because it is toxic to codling moth eggs laid on product residues (see recommendations under codling moth). Altacor can therefore be used as part of a management strategy to delay the first larvicide application against codling moth. Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing for this product.
spinetoram: Delegate is highly effective against leafroller larvae. While Delegate does not directly kill codling moth eggs it has a strong ovi-larvicidal activity, which means it kills codling moth larvae exiting eggs. Therefore, if Delegate is applied at this timing is can be used as part of a management strategy to delay the first larvicide application against codling moth. Delegate is in the same chemical class, and has the same mode of action, as Success (spinosad).
pyriproxyfen: Should be applied when the last larval stage is present but before pupation has begun. Use the WSU Decision Aid System (das.wsu.edu) for the optimum timing of the product on leafrollers.
methoxyfenozide: Some leafroller populations have developed resistance to Intrepid and use of this product in these situations will result in reduced control.
Apple petal-fall
Rosy apple aphid
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 226per acre: 1.7 oz12 h7 d4A
Efficacy: +++(+)
imidacloprid (Provado 1.6F) 6170per acre: 4-8 fl oz12 h7 d4A
Efficacy: not rated
Comments
Rosy apple aphid: Sprays become progressively less effective as the season advances and leaves curl.
imidacloprid: Do not use until pollination is complete and bees have been removed from the area.
Apple petal-fall
Spider mites
ProductRecommendationREIPHIMOA
hexythiazox (Savey 50DF) 229per acre: 4-6 oz12 h28 d10A
Efficacy: not rated
clofentezine (Apollo 4SC) 3076per acre: 6-8 fl oz12 h45 d10A
Efficacy: not rated
bifenazate (Acramite 50WS) 6111per acre: 0.75-1 lb12 h7 dun
Efficacy: ++++
etoxazole (Zeal 72WDG) 6112per acre: 2-3 oz12 h14 d10B
Efficacy: +++(+)
pyridaben (Nexter 75WSB) 6113per acre: 4.4-8.8 oz12 h25 d21A
Efficacy: ++(+)
spirodiclofen (Envidor 2SC) 6114per acre: 16-18 fl oz12 h7 d23
Efficacy: +++(+)
fenpyroximate (FujiMite 5%EC) 6115per acre: 1-2 pt12 h14 d21A
Efficacy: +++(+)
Comments
hexythiazox: Most effective on the egg stage. When mite populations are high and leaf bronzing has already occurred, a miticide effective on the adult stage may be used in combination.
Apple petal-fall
Grape mealybug
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 6124per acre: 3.4 oz12 h7 d4A
Efficacy: not rated
clothianidin (Clutch 50WDG) 6125per acre: 6 oz12 h7 d4A
Efficacy: not rated
thiacloprid (Calypso 4F) 6126per acre: 8 fl oz12 h30 d4A
Efficacy: not rated
buprofezin (Centaur 70W) 6127per acre: 34.5 oz12 h14 d16
Efficacy: not rated
imidacloprid (Provado 1.6F) 6171per acre: 8 fl oz12 h7 d4A
Efficacy: not rated
Comments
imidacloprid: Do not use until pollination is complete and bees have been removed from the area.
Apple petal-fall
Leafrollers, Pandemis and Obliquebanded
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 234per acre: See label4 h0 d11B2
Efficacy: +++
methoxyfenozide (Intrepid 2F) 235per acre: 16 fl oz4 h14 d18A
Efficacy: +++
pyriproxyfen (Esteem 35WP) 236per acre: 4-5 oz12 h45 d7C
Efficacy: ++++
spinosad (Success 2F) 237per acre: 6-10 fl oz4 h7 d5
Efficacy: +++(+)
novaluron (Rimon 0.83EC) 238per acre: 30-50 fl oz12 h14 d15
Efficacy: ++++
spinetoram (Delegate 25WG) 6188per acre: 4.5-7 oz4 h7 d5
Efficacy: ++++
spinosad (Entrust 80W) 6189per acre: 3 oz4 h7 d5
Efficacy: +++(+)
chlorantraniliprole (Altacor 35WDG) 6233per acre: 3-4.5 oz4 h5 d28
Efficacy: ++++
flubendiamide (Belt 4SC) 6319per acre: 5 fl oz12 h14 d28
Efficacy: ++++
cyantraniliprole (Exirel) 6647per acre: 10-17 fl oz12 h3 d28
Efficacy: ++++
Comments
Leafrollers, Pandemis and Obliquebanded : If treatments for leafrollers were applied at pink and/or bloom, sampling to determine the density of surviving leafrollers should be completed prior to deciding to apply additional controls at this timing.  

Most products listed act primarily as stomach poisons verses direct contact to residues, therefore, complete coverage is very important to achieve maximal control. Repeating an application of any product should be based on the leafroller population surviving previous treatments.  

Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing.
chlorantraniliprole: Altacor is highly effective against leafroller larvae and, at this treatment timing, has added value because it is toxic to codling moth eggs laid on product residues (see recommendations under codling moth). Altacor can therefore be used as part of a management strategy to delay the first larvicide application against codling moth. Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing for this product.
flubendiamide: Belt is in the same chemical class as Altacor and is very effective for control of leafroller larvae. However, Belt does not have ovicidal activity against codling moth eggs laid on its residues and therefore cannot be used as part of a strategy to delay the first larvicide treatment for codling moth. Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing for this product.
spinetoram: Delegate is highly effective against leafroller larvae. While Delegate does not directly kill codling moth eggs it has a strong ovi-larvicidal activity, which means it kills codling moth larvae exiting eggs. Therefore, if Delegate is applied at this timing is can be used as part of a management strategy to delay the first larvicide application against codling moth. Delegate is in the same chemical class, and has the same mode of action, as Success (spinosad).
Bacillus thuringiensis subsp. kurstaki: Applications of Bt products should be made when daily high temperatures are expected to be 65 degrees or more for three consecutive days. Two or three applications of Bt products are usually required to achieve acceptable control.
pyriproxyfen: Should be applied when the last larval stage is present but before pupation has begun. Use the WSU Decision Aid System (das.wsu.edu) for the optimum timing of the product on leafrollers.
methoxyfenozide: Some leafroller populations have developed resistance to Intrepid and use of this product in these situations will result in reduced control.
spinosad: Some leafroller populations have developed resistance to Success so use of this product in this situation may result in reduced control. Entrust is a spinosad formulation registered for organic apple production. It is effective against codling moth larvae hatching from the egg. It has a residual activity of 7 to 10 days. When Entrust is incorporated into an organic pest control program using pheromones, summer oil, and codling moth virus, good control of this key pest is possible. Best results occur when applications are timed for egg hatch, which may occur during bloom. See section on Hazards to Bees.

Apple petal-fall
Western tentiform leafminer
ProductRecommendationREIPHIMOA
spinosad (Success 2F) 240per acre: 6 fl oz4 h7 d5
Efficacy: +++(+)
Comments
Western tentiform leafminer: For best results against leafminer, use an adjuvant with abamectin and spinosad. See labels for specific adjuvant recommendations.
spinosad: Some leafroller populations have developed resistance to Success so use of this product in this situation may result in reduced control. Entrust is a spinosad formulation registered for organic apple production. It is effective against codling moth larvae hatching from the egg. It has a residual activity of 7 to 10 days. When Entrust is incorporated into an organic pest control program using pheromones, summer oil, and codling moth virus, good control of this key pest is possible. Best results occur when applications are timed for egg hatch, which may occur during bloom. See section on Hazards to Bees.
Apple petal-fall
White apple leafhopper
ProductRecommendationREIPHIMOA
indoxacarb (Avaunt 30DG) 244per acre: 6 oz12 h14 d22A
Efficacy: +++(+)
kaolin clay (Surround WP) 245per acre: See label4 h0 d
Efficacy: not rated
imidacloprid (Provado 1.6F) 6173per acre: 4-8 fl oz12 h7 d4A
Efficacy: ++++
Comments
White apple leafhopper: Carbaryl, if used for thinning, is also a very effective leafhopper material but the canopy spray technique may not provide adequate coverage for leafhopper control.
imidacloprid: Do not use until pollination is complete and bees have been removed from the area.
Apple petal-fall
Western flower thrips
ProductRecommendationREIPHIMOA
spinosad (Success 2F) 6134per acre: 6-8 fl oz4 h7 d5
Efficacy: +++
Comments
spinosad: Some leafroller populations have developed resistance to Success so use of this product in this situation may result in reduced control. Entrust is a spinosad formulation registered for organic apple production. It is effective against codling moth larvae hatching from the egg. It has a residual activity of 7 to 10 days. When Entrust is incorporated into an organic pest control program using pheromones, summer oil, and codling moth virus, good control of this key pest is possible. Best results occur when applications are timed for egg hatch, which may occur during bloom. See section on Hazards to Bees.
Apple 14-28 days after full bloom
Apple mildew
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 247per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
trifloxystrobin (Flint 50W) 250per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
Bacillus pumilus strain QST 2808 (Sonata) 6031per acre: 2-4 qt4 h0 d
Efficacy: not rated
cyprodinil+difenoconazole (Inspire Super) 6600per acre: 12 fl oz12h14d9,3
Efficacy: not rated
Comments
Apple mildew: Flint and Sovran: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
trifloxystrobin: Flint and Sovran are from the same chemical group (11). Use one of them ONLY.
Bacillus pumilus strain QST 2808: Organic fungicide.
kresoxim-methyl: Sovran and Flint  are from the same chemical group (11). Use one of them ONLY.
Apple 14-28 days after full bloom
Apple scab
ProductRecommendationREIPHIMOA
captan (Captan 50WP) 252per acre: 6 lb24 h0 dM4
Efficacy: not rated
kresoxim-methyl (Sovran 50WG) 256per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
trifloxystrobin (Flint 50W) 259per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
ziram (Ziram 76DF) 261per acre: See label48 h14 dM3
Efficacy: not rated
cyprodinil+difenoconazole (Inspire Super) 6601per acre: 12 fl oz12h14d9,3
Efficacy: not rated
Comments
trifloxystrobin: Flint and Sovran are from the same chemical group (11). Use one of them ONLY.
kresoxim-methyl: Sovran and Flint  are from the same chemical group (11). Use one of them ONLY.
Apple 14-28 days after full bloom
Codling moth
ProductRecommendationREIPHIMOA
petroleum oil-summer 263per acre: 0.25-1 % v/v4 h0 d
acetamiprid (Assail 70WP) 263per acre: 3.4 oz12 h7 d4A
Efficacy: +++(+)
thiacloprid (Calypso 4F) 265per acre: 4-8 fl oz12 h30 d4A
Efficacy: ++++
methoxyfenozide (Intrepid 2F) 267per acre: 16 fl oz4 h14 d18A
Efficacy: +++
CM granulosis virus 268per acre: See label4 h0 d
Efficacy: +++
spinetoram (Delegate 25WG) 6182per acre: 6-7 oz4 h7 d5
Efficacy: ++++
spinosad (Entrust 80W) 6183per acre: 3 oz4 h7 d5
Efficacy: ++(+)
chlorantraniliprole (Altacor 35WDG) 6235per acre: 3-4.5 oz4 h5 d28
Efficacy: ++++
cyantraniliprole (Exirel) 6648per acre: 10-17 fl oz12 h3 d28
Efficacy: ++++
Comments
Codling moth: Some orchards are experiencing lower levels of control of codling moth with organophosphate insecticides. Alternative products and strategies, including mating disruption, should be used in these situations to improve control.

Using the codling moth model the first larvicide application should be applied by 425 degree days after January 1st (see the new codling moth model on the IPM Decision Aids System web site - http://das.wsu.edu/). If an ovicide was applied at petal fall then the first larvicide application can be delayed until 525 degree days.

RESISTANCE MANAGEMENT: To minimize the development of codling moth resistance to any unique class of insecticide products, different insecticide classes should be used against subsequent generations.


Increased spider mite levels have been associated with the use of thiacloprid. Limiting the number of applications of these materials should minimize impact on integrated mite control.
chlorantraniliprole: Altacor is effective against codling moth eggs and larvae. At the high rate it has a residual activity of up to 17 days, at the low rate residual activity is no more than 14 days.
acetamiprid: If applied to control codling moth, this product will provide control of rosy apple aphid as well at this timing. Use an appropriate surfactant to enhance coverage and penetration.
CM granulosis virus: Codling moth granulosis virus is a highly specific control that should always be used as a component of a multi-tactic pest management program. The residual activity lasts only about 7 days. The affect of the virus is most often seen in a suppression of the pest's densities over time. Appling virus one or more times per codling moth generation at the end of the residual period of another insecticide to extend the protection period is a logical use of this technology.
spinetoram: Delegate is very effective against codling moth larvae. It has a residual activity of 14 days.
spinosad: Entrust is a spinosad formulation registered for organic apple production. It is effective against codling moth larvae hatching from the egg. It has a residual activity of 7 to 10 days. When Entrust is incorporated into an organic pest control program using pheromones, summer oil, and codling moth virus, good control of this key pest is possible.
methoxyfenozide: Intrepid is a stomach poison so complete coverage is important to good control. This product is recommended only as a supplement to mating disruption. Apply the first application of Intrepid at 425 degree days using the new codling moth model (equals 250 degree days using the old codling moth model) and follow with additional applications at 14 day intervals for a total of 3 sprays. Intrepid can also be used in the second generation (if not used in the first generation) timed at egg hatch and using the same re-treatment intervals.

Apple 14-28 days after full bloom
White apple leafhopper
ProductRecommendationREIPHIMOA
imidacloprid (Provado 1.6F) 271per acre: 4-8 fl oz12 h7 d4A
Efficacy: ++++
indoxacarb (Avaunt 30DG) 272per acre: 6 oz12 h14 d22A
Efficacy: +++(+)
kaolin clay (Surround WP) 273per acre: See label4 h0 d
Efficacy: not rated
potassium salts of fatty acids (M-Pede) 274per acre: 1 % v/v12 h0 d
Efficacy: ++(+)
thiacloprid (Calypso 4F) 275per acre: 4 fl oz12 h30 d4A
Efficacy: ++++
Comments
White apple leafhopper: Carbaryl, if used for thinning, is a very effective material, but the canopy spray technique may not provide adequate coverage for leafhopper control.
potassium salts of fatty acids: The spray timing for soap is when egg hatch is complete, or before adults appear. Best use is for soft programs where initial leafhopper populations are low to moderate. May be phytotoxic.
imidacloprid: Do not use until pollination is complete and bees have been removed from the orchard and neighboring orchards.
Apple 14-28 days after full bloom
Rosy apple aphid
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 276per acre: 1.7 oz12 h7 d4A
Efficacy: +++(+)
imidacloprid (Provado 1.6F) 277per acre: 4-8 fl oz12 h7 d4A
Efficacy: not rated
Comments
acetamiprid: If applied to control codling moth, this product will provide control of rosy apple aphid as well at this timing. Use an appropriate surfactant to enhance coverage and penetration.
imidacloprid: Do not use until pollination is complete and bees have been removed from the orchard and neighboring orchards.
Apple 14-28 days after full bloom
Woolly apple aphid
ProductRecommendationREIPHIMOA
petroleum oil-summer 6644per acre: 0.25-1 % v/v4 h0 d
spirotetramat (Ultor 1.25L) 6644per acre: 10-14 fl oz24 h7 d23
Efficacy: not rated
Comments
spirotetramat: Time Ultor applications shortly after petal fall, when the canopy is well developed, but leaves have not hardened off. A second application 14 days after the first may be helpful. This material is systemic, and will suppress root and shoot colonies of woolly apple aphid. Ultor suppresses woolly apple aphids later in the season, but overall control is not as good as with the early season timing (see Late Spring and Summer).
Apple late spring and summer
Apple scab
ProductRecommendationREIPHIMOA
captan (Captan 50WP) 278per acre: 8 lb24 h0 dM4
Efficacy: not rated
kresoxim-methyl (Sovran 50WG) 282per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
trifloxystrobin (Flint 50W) 284per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
Comments
Apple scab: Sprays may not be necessary unless the disease pressure is high especially on the West Coast.
Sovran and Flint: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
kresoxim-methyl: ONLY use one group 3-fungicide at the same growth stage.
Apple late spring and summer
Codling moth
ProductRecommendationREIPHIMOA
petroleum oil-summer 288per acre: 0.25-1 % v/v4 h0 d
acetamiprid (Assail 70WP) 288per acre: 3.4 oz12 h7 d4A
Efficacy: +++(+)
thiacloprid (Calypso 4F) 290per acre: 4-8 fl oz12 h30 d4A
Efficacy: ++++
novaluron (Rimon 0.83EC) 291per acre: 30-50 fl oz12 h14 d15
Efficacy: +++(+)
methoxyfenozide (Intrepid 2F) 293per acre: 16 fl oz4 h14 d18A
Efficacy: +++
CM granulosis virus 294per acre: See label4 h0 d
Efficacy: +++
spinetoram (Delegate 25WG) 6184per acre: 6-7 oz4 h7 d5
Efficacy: ++++
spinosad (Entrust 80W) 6185per acre: 3 oz4 h7 d5
Efficacy: ++(+)
chlorantraniliprole (Altacor 35WDG) 6236per acre: 3-4.5 oz4 h5 d28
Efficacy: ++++
cyantraniliprole (Exirel) 6649per acre: 10-17 fl oz12 h3 d28
Efficacy: ++++
Comments
Codling moth: Some orchards are experiencing lower levels of control of codling moth with organophosphate insecticides. Alternative products and strategies, including mating disruption, should be used in these situations to improve control.

Some of the recommended products (Rimon, Intrepid, Altacor) can be used as residual ovicides to kill codling moth eggs. The ovicide timing for the beginning of the second generation is 1175 degree days using the codling moth model, which accumulates degree days from January 1. If one of these products is used as a residual ovicide at 1175 degree days the first larvicide application can be delayed to 1525 degree days.

RESISTANCE MANAGEMENT: To minimize the development of codling moth resistance to any unique class of insecticide products in the class should not be used against consecutive generations. A sound resistance management program therefore requires the use of different classes of insecticide against consecutive generations.

Increased spider mite levels have been associated with the use of thiacloprid and novaluron. Limiting the number of applications of these materials should minimize impact on integrated mite control.
chlorantraniliprole: Altacor is very effective against leafroller larvae and codling moth eggs and larvae. It has a residual activity of up to 17 days when using the high label rate or not more than 14 days when using the low label rate. Altacor is in the same chemical class as Belt.
CM granulosis virus: Codling moth granulosis virus is a highly specific control that should always be used as a component of a multi-tactic pest management program. The residual activity lasts at most 7 days. The effect of the virus is most often seen in a suppression of the pest's densities over time. Applying virus one or more times per codling moth generation at the end of the residual period of another insecticide to extend the protection period is a logical use of this technology.
spinetoram: Delegate is very effective against leafroller and codling moth larvae. It has a residual activity of 14 days. Delegate is in the same chemical class as Success (spinosad) so avoid using these products against two consecutive generations.
spinosad: Entrust is a spinosad formulation registered for organic apple production. It is effective against codling moth larvae hatching from the egg. It has a residual activity of 7 to 10 days. When Entrust is incorporated into an organic pest control program using pheromones, summer oil, and codling moth virus, good control of this key pest is possible. Some leafroller populations have developed resistance to Success (spinosad) and its use could result in reduced levels of control. Success is in the same chemical class as Delegate (spinetoram) so avoid using these products against two consecutive generations.
methoxyfenozide: Methoxyfenozide is both an ovicide (kill eggs of codling moth) and a stomach poison (leafrollers) so a complete spray coverage of foliage and fruit is important to achieving good control. This product is recommended only as a supplement to mating disruption. Intrepid can be used as an ovicide by applying it at 1175 degree days or as a larvicide by applying it at 1425 degree days using the codling moth model. If Intrepid is applied at 1175 degree days then the first larvicide can be delayed until 1525 degree days using the codling moth model. Some leafroller populations have developed resistance to Intrepid and its use could results in reduced levels of control.
novaluron: If Rimon is used in the second generation it should be applied at the beginning of the predicted egg laying period based on the codling moth model at 1175 degree-days.  If Rimon is used then the first larvicide application can be delayed until 1525 degree days using the codling moth model. 
Apple late spring and summer
Cutworms
ProductRecommendationREIPHIMOA
indoxacarb (Avaunt 30DG) 6237per acre: 6 oz12 h14 d22A
Efficacy: ++++
Apple late spring and summer
Spider mites
ProductRecommendationREIPHIMOA
bifenazate (Acramite 50WS) 296per acre: 0.75-1 lb12 h7 dun
Efficacy: ++++
etoxazole (Zeal 72WDG) 297per acre: 2-3 oz12 h14 d10B
Efficacy: +++(+)
hexythiazox (Savey 50DF) 298per acre: 4-6 oz12 h28 d10A
Efficacy: not rated
pyridaben (Nexter 75WSB) 299per acre: 4.4-8.8 oz12 h25 d21A
Efficacy: ++(+)
spirodiclofen (Envidor 2SC) 300per acre: 16-18 fl oz12 h7 d23
Efficacy: +++(+)
fenpyroximate (FujiMite 5%EC) 6014per acre: 1-2 pt12 h14 d21A
Efficacy: +++(+)
Comments
pyridaben: Use a low to moderate rate for European red mite; a moderate to high rate for twospotted and McDaniel spider mites.
hexythiazox: Most effective on the egg stage. When mite populations are high and leaf bronzing has already occurred, a miticide more effective on the adult stage may be used in combination.
Apple late spring and summer
Grape mealybug
ProductRecommendationREIPHIMOA
imidacloprid (Provado 1.6F) 304per acre: 8 fl oz12 h7 d4A
Efficacy: not rated
acetamiprid (Assail 70WP) 6129per acre: 3.4 oz12 h7 d4A
Efficacy: not rated
buprofezin (Centaur 70W) 6130per acre: 34.5 oz12 h14 d16
Efficacy: not rated
clothianidin (Clutch 50WDG) 6131per acre: 6 oz12 h7 d4A
Efficacy: not rated
thiacloprid (Calypso 4F) 6132per acre: 8 fl oz12 h30 d4A
Efficacy: not rated
Apple late spring and summer
Green apple aphid
ProductRecommendationREIPHIMOA
imidacloprid (Provado 1.6F) 307per acre: 4-8 fl oz12 h7 d4A
Efficacy: ++++
acetamiprid (Assail 70WP) 308per acre: 1.7 oz12 h7 d4A
Efficacy: +++(+)
Apple late spring and summer
Lacanobia fruitworm
ProductRecommendationREIPHIMOA
indoxacarb (Avaunt 30DG) 311per acre: 3-6 oz12 h14 d22A
Efficacy: ++++
kaolin clay (Surround WP) 312per acre: 50 lb4 h0 d
Efficacy: +++(+)
methoxyfenozide (Intrepid 2F) 313per acre: 16 fl oz4 h14 d18A
Efficacy: +++(+)
spinosad (Success 2F) 314per acre: 6-10 fl oz4 h7 d5
Efficacy: +++(+)
spinosad (Entrust 80W) 6195per acre: 3 oz4 h7 d5
Efficacy: +++(+)
Comments
Lacanobia fruitworm: Use only against young larvae and NOT after larvae have changed color from green to brown.
spinosad: Entrust is a spinosad formulation registered for organic apple production. It is effective against codling moth larvae hatching from the egg. It has a residual activity of 7 to 10 days. When Entrust is incorporated into an organic pest control program using pheromones, summer oil, and codling moth virus, good control of this key pest is possible. Some leafroller populations have developed resistance to Success (spinosad) and its use could result in reduced levels of control. Success is in the same chemical class as Delegate (spinetoram) so avoid using these products against two consecutive generations.
methoxyfenozide: Methoxyfenozide is both an ovicide (kill eggs of codling moth) and a stomach poison (leafrollers) so a complete spray coverage of foliage and fruit is important to achieving good control. This product is recommended only as a supplement to mating disruption. Intrepid can be used as an ovicide by applying it at 1175 degree days or as a larvicide by applying it at 1425 degree days using the codling moth model. If Intrepid is applied at 1175 degree days then the first larvicide can be delayed until 1525 degree days using the codling moth model. Some leafroller populations have developed resistance to Intrepid and its use could results in reduced levels of control.
Apple late spring and summer
Leafrollers (Pandemis, Obliquebanded)
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 315per acre: See label4 h0 d11B2
Efficacy: +++
methoxyfenozide (Intrepid 2F) 316per acre: 16 fl oz4 h14 d18A
Efficacy: +++
spinosad (Success 2F) 317per acre: 6-10 fl oz4 h7 d5
Efficacy: +++(+)
novaluron (Rimon 0.83EC) 318per acre: 30-50 fl oz12 h14 d15
Efficacy: ++++
spinetoram (Delegate 25WG) 6190per acre: 4.5-7 oz4 h7 d5
Efficacy: ++++
spinosad (Entrust 80W) 6191per acre: 3 oz4 h7 d5
Efficacy: +++(+)
chlorantraniliprole (Altacor 35WDG) 6238per acre: 3-4.5 oz4 h5 d28
Efficacy: ++++
flubendiamide (Belt 4SC) 6322per acre: 5 fl oz12 h14 d28
Efficacy: ++++
cyantraniliprole (Exirel) 6650per acre: 10-17 fl oz12 h3 d28
Efficacy: ++++
Comments
Leafrollers (Pandemis, Obliquebanded): If you used one of these products to control overwintering leafroller larvae (petal-fall or later in spring) it should not be used again at this time in order to minimize the development of resistance. All these products should target young leafroller larvae in late June or early July. Consult leafroller models available over the IPM Decision Aids System web site at http://das.wsu.edu/. All these products are primarily stomach poisons, so complete coverage of foliage is very important for efficacy.
chlorantraniliprole: Altacor is very effective against leafroller larvae and codling moth eggs and larvae. It has a residual activity of up to 17 days when using the high label rate or not more than 14 days when using the low label rate. Altacor is in the same chemical class as Belt.
flubendiamide: Belt is in the same chemical class as Altacor and is very effective for control of leafroller larvae.
spinetoram: Delegate is very effective against leafroller and codling moth larvae. It has a residual activity of 14 days. Delegate is in the same chemical class as Success (spinosad) so avoid using these products against two consecutive generations.
Bacillus thuringiensis subsp. kurstaki: Two or three Bt applications are usually required to achieve acceptable control. Time the first application to coincide with leafroller egg hatch. A repeat application might be required if leafroller populations are high.
spinosad: Entrust is a spinosad formulation registered for organic apple production. It is effective against codling moth larvae hatching from the egg. It has a residual activity of 7 to 10 days. When Entrust is incorporated into an organic pest control program using pheromones, summer oil, and codling moth virus, good control of this key pest is possible. Some leafroller populations have developed resistance to Success (spinosad) and its use could result in reduced levels of control. Success is in the same chemical class as Delegate (spinetoram) so avoid using these products against two consecutive generations.
methoxyfenozide: Methoxyfenozide is both an ovicide (kill eggs of codling moth) and a stomach poison (leafrollers) so a complete spray coverage of foliage and fruit is important to achieving good control. This product is recommended only as a supplement to mating disruption. Intrepid can be used as an ovicide by applying it at 1175 degree days or as a larvicide by applying it at 1425 degree days using the codling moth model. If Intrepid is applied at 1175 degree days then the first larvicide can be delayed until 1525 degree days using the codling moth model. Some leafroller populations have developed resistance to Intrepid and its use could results in reduced levels of control.
novaluron: If Rimon is used in the second generation it should be applied at the beginning of the predicted egg laying period based on the codling moth model at 1175 degree-days.  If Rimon is used then the first larvicide application can be delayed until 1525 degree days using the codling moth model. 
Apple late spring and summer
San Jose scale
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 319per acre: 4 lb4 d21 d1B
Efficacy: +++
Comments
diazinon: If problem is serious, apply 2 sprays, one in early to mid-June, and one 14 days later.
Apple late spring and summer
Shothole borer
ProductRecommendationREIPHIMOA
esfenvalerate (Asana XL) 6660per acre: 14.5 fl oz12 h21 d3A
Efficacy: not rated
acetamiprid (Assail 70WP) 6661per acre: 3.4 oz12 h7 d4A
Efficacy: not rated
Comments
Shothole borer: Good sanitation (removing large wood pruning and wood piles from the orchard) is the best management tactic. Insecticides are only effective against adults. The second generation flight begins in late July or early August. Yellow sticky traps placed on orchard borders will detect activity of the adult beetles. Spraying the border trees (rows) with high water volumes will protect the remainder of the orchard in many situations where external sources are the primary problem.
Apple late spring and summer
Stink bugs
ProductRecommendationREIPHIMOA
fenpropathrin (Danitol 2.4EC) 322per acre: 20 fl oz24 h14 d3A
Efficacy: ++++
methomyl (Lannate 90SP) 6390per acre: 1 lb3 d14 d1A
Efficacy: ++++
Comments
Stink bugs: Spraying orchard borders may help in control. Danitol and Warrior are highly effective against stink bugs invading orchards in late summer. Apply them only if the orchard is threatened and only to the orchard borders unless pest pressure is extreme. All treatments applied in late evening or early morning will have a better chance of controlling stink bugs. WARNING: Both Danitol and Warrior are toxic to predatory mites and their use can result in increased problems with spider mites.
methomyl: Lannate has high mamalian toxicity and is known to disrupt biological control for many pests, especially spider mites and aphids.  
Apple late spring and summer
Western tentiform leafminer
ProductRecommendationREIPHIMOA
spinosad (Success 2F) 325per acre: 6-10 fl oz4 h7 d5
Efficacy: +++(+)
Comments
Western tentiform leafminer: For best results against leafminer, use an adjuvant with abamectin and spinosad. See labels for specific adjuvant recommendations. Most effective when applied early in the tissue feeder stage, or earlier (peak sap feeder).
Apple late spring and summer
White apple leafhopper
ProductRecommendationREIPHIMOA
carbaryl (Sevin 4F) 326per acre: 1-2 pt12 h3 d1A
Efficacy: ++++
imidacloprid (Provado 1.6F) 329per acre: 4-8 fl oz12 h7 d4A
Efficacy: ++++
indoxacarb (Avaunt 30DG) 330per acre: 4-6 oz12 h14 d22A
Efficacy: +++(+)
kaolin clay (Surround WP) 331per acre: See label4 h0 d
Efficacy: not rated
Comments
carbaryl: Carbaryl may disrupt integrated mite control depending on history of use. Use higher rate if leafhopper population is composed primarily of adults.
Apple late spring and summer
Woolly apple aphid
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 333per acre: 4 lb4 d21 d1B
Efficacy: ++++
spirotetramat (Ultor 1.25L) 6359per acre: 10-14 fl oz24 h7 d23
petroleum oil-summer 6359per acre: 0.25-1 % v/v4 h0 d
Efficacy: not rated
Comments
Woolly apple aphid: Oil will suppress woolly apple aphid, either alone or tank-mixed with an insecticide. When used alone, multiple applications and/or high spray volumes will help.
diazinon: If problem is serious, apply 2 sprays, one in early to mid-June, and one 14 days later.
spirotetramat: Ultor may only provide suppression if used in mid- and late-season sprays; preliminary evidence suggests that better efficacy may be obtained when it is applied prophylactically shortly after petal fall.
Apple late spring and summer
Apple Maggot
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 6137per acre: 3.4 oz12 h7 d4A
Efficacy: not rated
Apple preharvest
Apple scab
ProductRecommendationREIPHIMOA
captan (Captan 50WP) 335per acre: 6 lb24 h0 dM4
Efficacy: not rated
ziram (Ziram 76DF) 337per acre: See label48 h14 dM3
Efficacy: not rated
Comments
Apple scab: Sprays may not be necessary unless the disease pressure is high especially on the westt side of the Cascades.
captan: When applicable, tank-mix with other single-site fungicides to reduce risk fo fungicide resistance development.
ziram: When applicable, tank-mix with other single-site fungicides to reduce risk fo fungicide resistance development.
Apple preharvest
Bull's eye rot
ProductRecommendationREIPHIMOA
captan (Captan 50WP) 338per acre: 6 lb24 h0 dM4
Efficacy: not rated
ziram (Ziram 76DF) 339per acre: See label48 h14 dM3
Efficacy: not rated
thiophanate-methyl (Topsin M 70WP) 6796per acre: 1 lb2 d1 d1
Efficacy: not rated
Comments
Bull's eye rot: Topsin-M is ONLY recommended under wet conditions and for cultivars susceptibel to bull's eye rot. Frequent sprays may increase risks of resistance development to Mertect, a fungicide from the same group as Topsin-M (1) used after harvest.
captan: When applicable, tank-mix with other single-site fungicides to reduce risk fo fungicide resistance development.
thiophanate-methyl: Topsin M and Mertect belong to the same class of fungicide. If Mertect is routinely used as a postharvest treatment at the packinghouse, do not use Topsin M as a preharvest spray in the field.
ziram: When applicable, tank-mix with other single-site fungicides to reduce risk fo fungicide resistance development.
Apple preharvest
Storage rots
ProductRecommendationREIPHIMOA
thiophanate-methyl (Topsin M 70WP) 6428per acre: 1 lb2 d1 d1
Efficacy: not rated
Comments
Storage rots: A ground applied, dilute application leading to excellent fruit coverage is essential for control of storage rots.
thiophanate-methyl: Topsin M and Mertect belong to the same class of fungicide. If Mertect is routinely used as a postharvest treatment at the packinghouse, do not use Topsin M as a preharvest spray in the field.
Apple preharvest
Codling moth
ProductRecommendationREIPHIMOA
carbaryl (Sevin 4F) 343per acre: 2 pt12 h3 d1A
Efficacy: ++
petroleum oil-summer 6092per acre: 0.25 % v/v4 h0 d
acetamiprid (Assail 70WP) 6092per acre: 3.4 oz12 h7 d4A
Efficacy: +++(+)
spinetoram (Delegate 25WG) 6186per acre: 6-7 oz4 h7 d5
Efficacy: ++++
spinosad (Entrust 80W) 6187per acre: 3 oz4 h7 d5
Efficacy: ++(+)
Comments
Codling moth: Use carbaryl or acetamiprid near harvest or on late-maturing varieties to prevent fruit damage from codling moth where pressure is high.
spinetoram: Delegate is effective against codling moth larvae. It has a residual activity of 14 days.
spinosad: Entrust is a spinosad formulation registered for organic apple production. It is effective against codling moth larvae hatching from the egg. It has a residual activity of 7 to 10 days. When Entrust is incorporated into an organic pest control program using pheromones, summer oil, and codling moth virus, good control of this key pest is possible.
Apple preharvest
Leafrollers (Pandemis, Obliquebanded)
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 345per acre: See label4 h0 d11B2
Efficacy: +++
Comments
Bacillus thuringiensis subsp. kurstaki: Bts are stomach poisons so complete coverage is very important for control. Two or three applications are usually required.
Apple preharvest
Apple maggot
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 6139per acre: 3.4 oz12 h7 d4A
Efficacy: not rated
Pear dormant
Pear psylla
ProductRecommendationREIPHIMOA
endosulfan (Thionex 3EC) 346per acre: 2.67 qt7 d7 d2A
petroleum oil- dormant 346per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
petroleum oil- dormant 347per acre: 1-1.5 % v/v12 hnone listed
esfenvalerate (Asana XL) 347per acre: 1 pt12 h28 d3A
Efficacy: not rated
lime sulfur/calcium polysulfide 348per acre: See label48 hnone listed
petroleum oil- dormant 348per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
sulfur, dry flowable 349per acre: See label24 hnone listedM2
petroleum oil- dormant 349per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
permethrin (Pounce 3.2EC) 351per acre: 12 fl oz12 hnone listed3A
petroleum oil- dormant 351per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
lambda-cyhalothrin (Warrior 1CS) 352per acre: 2.5-5 fl oz24 h21 d3A
petroleum oil- dormant 352per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
permethrin (Ambush 25WP) 6043per acre: 12.8-25.6 oz12 hnone listed3A
petroleum oil- dormant 6043per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
petroleum oil- dormant 6044per acre: 1-1.5 % v/v12 hnone listed
kaolin clay (Surround WP) 6044per acre: 25-50 lb4 h0 d
Efficacy: not rated
gamma-cyhalothrin (Proaxis 0.5L) 6118per acre: 5.12 fl oz24 h21 d3A
petroleum oil- dormant 6118per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
Comments
Pear psylla: Do not use esfenvalerate and permethrin more than 2 times per season. Pyrethroid (mode of action 3A) resistance is present in many areas and may severely reduce efficacy.
kaolin clay: Apply two to three applications as necessary to cover new growth between dormant/ delayed dormant and first bloom.
Pear delayed dormant
European red mite
ProductRecommendationREIPHIMOA
petroleum oil- dormant 356per acre: 1.5 % v/v12 hnone listed
Efficacy: +++(+)
Comments
petroleum oil- dormant: Use no more than 5 gals. oil per acre in concentrate sprays. In areas where pears are susceptible to oil injury, reduce dosage so that no more than 5 gals. per acre are applied during the prebloom period. If scale is a problem, use a dilute spray. Use handgun for hard-to-cover problem areas.
Pear delayed dormant
Grape mealybug
ProductRecommendationREIPHIMOA
petroleum oil- dormant 357per acre: 1.5 % v/v12 hnone listed
chlorpyrifos (Lorsban Advanced) 357per acre: 4 pt4 dNL1B
Efficacy: not rated
diazinon (Diazinon 50W) 358per acre: 4 lb4 d21 d1B
petroleum oil- dormant 358per acre: 1.5 % v/v12 hnone listed
Efficacy: not rated
Comments
petroleum oil- dormant: Use no more than 5 gals. oil per acre in concentrate sprays. In areas where pears are susceptible to oil injury, reduce dosage so that no more than 5 gals. per acre are applied during the prebloom period. If scale is a problem, use a dilute spray. Use handgun for hard-to-cover problem areas.
Pear delayed dormant
Pear psylla
ProductRecommendationREIPHIMOA
petroleum oil- dormant 361per acre: 1-1.5 % v/v12 hnone listed
lime sulfur/calcium polysulfide 361per acre: See label48 hnone listed
Efficacy: not rated
endosulfan (Thionex 3EC) 362per acre: 2.67 qt7 d7 d2A
petroleum oil- dormant 362per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
petroleum oil- dormant 363per acre: 1-1.5 % v/v12 hnone listed
esfenvalerate (Asana XL) 363per acre: 1 pt12 h28 d3A
Efficacy: not rated
petroleum oil- dormant 364per acre: 1-1.5 % v/v12 hnone listed
kaolin clay (Surround WP) 364per acre: 25-50 lb4 h0 d
Efficacy: not rated
sulfur, dry flowable 366per acre: See label24 hnone listedM2
petroleum oil- dormant 366per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
permethrin (Pounce 3.2EC) 367per acre: 12 fl oz12 hnone listed3A
petroleum oil- dormant 367per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
acetamiprid (Assail 70WP) 368per acre: 2.3-3.4 oz12 h7 d4A
petroleum oil- dormant 368per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
petroleum oil- dormant 369per acre: 1-1.5 % v/v12 hnone listed
pyriproxyfen (Esteem 35WP) 369per acre: 5 oz12 h45 d7C
Efficacy: not rated
petroleum oil- dormant 371per acre: 1-1.5 % v/v12 hnone listed
lambda-cyhalothrin (Warrior 1CS) 371per acre: 2.5-5 fl oz24 h21 d3A
Efficacy: not rated
gamma-cyhalothrin (Proaxis 0.5L) 6095per acre: 5.12 fl oz24 h21 d3A
petroleum oil- dormant 6095per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
petroleum oil- dormant 6160per acre: 1-1.5 % v/v12 hnone listed
diflubenzuron (Dimilin 2L) 6160per acre: 40-48 fl oz12 h14 d15
Efficacy: not rated
Comments
Pear psylla: Pyrethroid resistance is present in many areas and may severely reduce efficacy of esfenvalerate. Note: Insect growth regulators Dimilin and Esteem are most effective when applied prior to significant egg deposition. See label.
sulfur, dry flowable: Do not apply to Anjou pears.
petroleum oil- dormant: Use no more than 5 gals. oil per acre in concentrate sprays. In areas where pears are susceptible to oil injury, reduce dosage so that no more than 5 gals. per acre are applied during the prebloom period. If scale is a problem, use a dilute spray. Use handgun for hard-to-cover problem areas.
kaolin clay: Apply two to three applications between dormant/delayed dormant and first bloom. Coverage of green tissue is important; apply every 2-3 weeks or as needed to cover new tree growth.
Pear delayed dormant
Pear rust mite, pearleaf blister mite
ProductRecommendationREIPHIMOA
petroleum oil- dormant 372per acre: 1-1.5 % v/v12 hnone listed
carbaryl (Sevin 4F) 372per acre: 4 pt12 h3 d1A
Efficacy: not rated
sulfur, dry flowable 374per acre: See label24 hnone listedM2
Efficacy: not rated
Comments
sulfur, dry flowable: Do not apply to Anjou pears.
petroleum oil- dormant: Use no more than 5 gals. oil per acre in concentrate sprays. In areas where pears are susceptible to oil injury, reduce dosage so that no more than 5 gals. per acre are applied during the prebloom period. If scale is a problem, use a dilute spray. Use handgun for hard-to-cover problem areas.
Pear delayed dormant
San Jose scale
ProductRecommendationREIPHIMOA
chlorpyrifos (Lorsban Advanced) 377per acre: 4 pt4 dNL1B
petroleum oil- dormant 377per acre: 1-1.5 % v/v12 hnone listed
Efficacy: ++++
methidathion (Supracide 25W) 378per acre: 6 lb48 h-14 d (see label)none listed1B
petroleum oil- dormant 378per acre: 1-1.5 % v/v12 hnone listed
Efficacy: not rated
pyriproxyfen (Esteem 35WP) 6096per acre: 4-5 oz12 h45 d7C
Efficacy: +++(+)
Comments
petroleum oil- dormant: Use no more than 5 gals. oil per acre in concentrate sprays. In areas where pears are susceptible to oil injury, reduce dosage so that no more than 5 gals. per acre are applied during the prebloom period. If scale is a problem, use a dilute spray. Use handgun for hard-to-cover problem areas.
Pear prepink
European red mite
ProductRecommendationREIPHIMOA
petroleum oil- dormant 379per acre: 1 % v/v12 hnone listed
Efficacy: +++(+)
Pear prepink
Grape mealybug
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 380per acre: 4 lb4 d21 d1B
Efficacy: not rated
acetamiprid (Assail 70WP) 384per acre: 2.3-3.4 oz12 h7 d4A
Efficacy: +++(+)
thiacloprid (Calypso 4F) 385per acre: 6-8 fl oz12 h30 d4A
Efficacy: +++(+)
buprofezin (Centaur 70W) 6017per acre: 34.5 oz12 h14 d16
Efficacy: ++++
Comments
Grape mealybug: thiamethoxam - PHI depends on rate used. Use a dilute spray for full coverage.
thiacloprid: Only for use on oriental pears
Pear prepink
Lygus bugs, stink bugs, green fruitworm
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 388per acre: 4 lb4 d21 d1B
Efficacy: not rated
Pear prepink
Pear psylla
ProductRecommendationREIPHIMOA
esfenvalerate (Asana XL) 389per acre: 1 pt12 h28 d3A
Efficacy: +(+++)
pyriproxyfen (Esteem 35WP) 392per acre: 5 oz12 h45 d7C
Efficacy: +++
acetamiprid (Assail 70WP) 395per acre: 2.3-3.4 oz12 h7 d4A
Efficacy: ++++
thiacloprid (Calypso 4F) 396per acre: 6-8 fl oz12 h30 d4A
Efficacy: ++++
buprofezin (Centaur 70W) 6018per acre: 34.5 oz12 h14 d16
Efficacy: ++(+)
pyridaben (Nexter 75WSB) 6093per acre: 10.67 oz12 h7 d21A
Efficacy: +++(+)
diflubenzuron (Dimilin 2L) 6163per acre: 40-48 fl oz12 h14 d15
Efficacy: not rated
novaluron (Rimon 0.83EC) 6360per acre: 32 fl oz12 h14 d15
Efficacy: +++(+)
Comments
thiacloprid: Only for use on oriental pears
novaluron: Do not apply novaluron after petal fall.
Pear prepink
Pear rust mite, brown mite
ProductRecommendationREIPHIMOA
pyridaben (Nexter 75WSB) 6107per acre: 6.6-10.67 oz12 h7 d21A
Efficacy: +++(+)
Pear prepink
San Jose scale
ProductRecommendationREIPHIMOA
pyriproxyfen (Esteem 35WP) 6097per acre: 4-5 oz12 h45 d7C
Efficacy: +++(+)
Pear pink
Pandemis leafroller
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 400per acre: See label4 h0 d11B2
Efficacy: not rated
Comments
Bacillus thuringiensis subsp. kurstaki: Bts are stomach poisons, so complete coverage is very important for control. Two or three applications are usually required. Apply when forecasts predict a warm weather pattern for 3 or more days. This timing is too early for for control of obliquebanded leafroller.
Pear pink
Pear mildew (Anjou)
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 401per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
trifloxystrobin (Flint 50W) 403per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
triflumizole (Procure 480SC) 6034per acre: 8-16 fl oz12 h14 d3
Efficacy: not rated
penthiopyrad (Fontelis) 6629per acre: 14-20 fl oz12h28d7
Efficacy: not rated
Comments
Pear mildew (Anjou): Do NOT use lime sulfur or flowable micronized sulfur on Anjou.
penthiopyrad: Fontelis and Aprovia are from the same chemical group (7). Use one of them ONLY at the same growth stage.
kresoxim-methyl: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
Pear pink
Pear mildew (other varieties)
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 405per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
sulfur, dry flowable 407per acre: See label24 hnone listedM2
Efficacy: not rated
trifloxystrobin (Flint 50W) 409per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
triflumizole (Procure 480SC) 6035per acre: 8-16 fl oz12 h14 d3
Efficacy: not rated
Comments
Pear mildew (other varieties): Flint and Sovran are from the same chemical group (11). To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
kresoxim-methyl: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
Pear pink
Pear scab
ProductRecommendationREIPHIMOA
cyprodinil (Vangard 75WG) 411per acre: See label12 h0 d9
Efficacy: not rated
kresoxim-methyl (Sovran 50WG) 413per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
mancozeb (Dithane M45 80W) 415per acre: 6 lb24 h77 dM3
Efficacy: not rated
triflumizole (Procure 480SC) 6090per acre: 8-16 fl oz12 h14 d3
Efficacy: not rated
penthiopyrad (Fontelis) 6625per acre: 14-20 fl oz12h28d7
Efficacy: not rated
Comments
Pear scab: Procure: Rate varies when used in eradicant (postinfective) schedules. See label.
mancozeb: Do not apply after bloom.
penthiopyrad: Fontelis and Aprovia are from the same chemical group (7). Use one of them ONLY at the same growth stage.
kresoxim-methyl: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
cyprodinil: Do not apply Vangard alone to pears. Apply in tank mixture with the recommended rate of a protectant or systemic fungicide registered on pome fruits. See label for mixing procedures.
Pear first bloom
Codling moth
ProductRecommendationREIPHIMOA
CM pheromone dispensers 417per acre: See labelnone listednone listed
Efficacy: not rated
Comments
CM pheromone dispensers: Many pear growers in Washington use pheromones to help control codling moth. Pheromone dispensers must be in place before the first moth flight, that is prior to bloom. The number of dispenser units per acre will depend on the product used and pest pressure.

Hand-applied dispensers should be placed within the top 2 feet of the tree canopy. It is strongly recommended that full label rate of any hand-applied pheromone dispenser be used. Reducing the rate of hand-applied dispensers per acre can reduce efficacy and result in more damage from codling moth or require the use of more insecticides to achieve acceptable control. 

Some pear growers are using aerosol pheromone emitters (CheckMate CM-O Puffer and Isomate CM MIST) to control codling moth. This technology is used at a rate of one pheromone emitter per acre. WSU research has shown that the aerosol emitter technology works as good as a full rate (400 dispensers per acre) of a hand-applied dispenser technology.  However, the borders of orchards need to be treated with hand-applied pheromone dispensers to cover gaps resulting from the number of aerosol emitters that are applied per acre.

Pear first bloom
Fire blight (D'Anjou)
ProductRecommendationREIPHIMOA
oxytetracycline (FireLine 17WP) 6393per acre: 1 lb12 h60 d41
Efficacy: not rated
Comments
Fire blight: There is a risk of fire blight infection any time there are flowers on the tree, the weather is warm, and wetting occurs. Watch the model.

Delayed dormant (2 to 4 weeks before bloom): Apply fixed copper bactericides for orchard sanitation. This reduces the primary inoculum and delays the pathogen’s colonization of the flowers.  A delayed dormant application of a fixed copper is recommended only if fire blight was present in the orchard last season.

Early bloom. Apply biologicals (Blossom Protect) during early bloom two times. The second application should be after lime sulfur when it is applied. In smooth skinned pears in wetter areas russet risk may be unacceptably high. Bloomtime Biological is a fruit safe alternative material.

Full bloom to petal fall. Watch the model. If an infection event occurs, apply an antibiotic as soon as possible, but within 24 hours of infection (usually wetting of flowers). Repeated antibiotic sprays may be necessary during extended high or extreme risk periods. Best results are obtained when applied within 24-hour window before flower wetting during a high infection risk period. Beneficial only for flower infection prevention. Product used must contact the interior of the flowers in sufficient water and approved wetting agent to completely wet the interior. One pound of any 17% oxytetracycline product per 100 gallons gives a 200 ppm solution. Kasugamycin is another effective antibiotic. Some trials have shown that a full rate of Kasumin and a half rate of oxytetracycline provides excellent control. Applications of less than 100 gal/A can be effective on small trees if flower interiors are well covered, but do not drop the ppm below 200 (oxytetracycline). Application by ground equipment on each row is highly recommended. Application of antibiotics by aircraft is not recommended. Many fire blight bacteria in the Pacific Northwest are resistant to streptomycin, another registered antibiotic.

Organic. Prebloom. Fixed copper sanitation if fire blight was in the orchard last year. One to two applications of biologicals (Blossom Protect). Reapply if lime sulfur which is antimicrobial is used. Depending on the cultivar russet risk and the CougarBlight model risk follow with Bacillus subtilis (Serenade Optimum) (most fruit safe) every 2-5 days during flower/petal fall or copper hydroxide/octanoate (Cueva/Previsto) every 5 to 6 days (This option is less fruit safe for russet and risk may be too high for high smooth skinned pears).

Pear first bloom
Fire blight (other varieties)
ProductRecommendationREIPHIMOA
fixed copper (Basic Copper 53) 422per acre: 2 lb24 h0 dM1
Efficacy: not rated
copper hydroxide (Kocide 3000) 423per acre: See label48 h0 dM1
Efficacy: not rated
oxytetracycline (FireLine 17WP) 6747per acre: 1 lb12 h60 d41
Efficacy: not rated
Comments
copper hydroxide: Copper fungicides generally are less effective than antibiotics. They work best when applied frequently when flowers are open, and at higher label rates. This increases the possibility of fruit russeting.
Pear first bloom
Pandemis leafroller
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 426per acre: See label4 h0 d11B2
Efficacy: not rated
Comments
Bacillus thuringiensis subsp. kurstaki: Bts are stomach poisons, so complete coverage is very important for control. Two or three applications are usually required. Apply when forecasts predict a warm weather pattern for 3 or more days. This timing is too early for control of obliquebanded leafroller.
Pear first bloom
Pear mildew
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 427per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
trifloxystrobin (Flint 50W) 429per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
triflumizole (Procure 480SC) 6227per acre: 8-16 fl oz12 h14 d3
Efficacy: not rated
penthiopyrad (Fontelis) 6630per acre: 14-20 fl oz12h28d7
Efficacy: not rated
Pear first bloom
Pear scab
ProductRecommendationREIPHIMOA
cyprodinil (Vangard 75WG) 431per acre: See label12 h0 d9
Efficacy: not rated
dodine (Syllit 3.4FL) 432per acre: 4.5 pt48 h7 dU12
Efficacy: not rated
kresoxim-methyl (Sovran 50WG) 433per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
mancozeb (Dithane M45 80W) 435per acre: 6 lb24 h77 dM3
Efficacy: not rated
triflumizole (Procure 480SC) 6228per acre: 8-16 fl oz12 h14 d3
Efficacy: not rated
penthiopyrad (Fontelis) 6626per acre: 14-20 fl oz12h28d7
Efficacy: not rated
Pear petal fall
Bull's eye rot
ProductRecommendationREIPHIMOA
ziram (Ziram 76DF) 437per acre: See label48 h14 dM3
Efficacy: not rated
Comments
Bull's eye rot: Apply while pear calyx is still upright.
Pear petal fall
Codling moth
ProductRecommendationREIPHIMOA
CM pheromone dispensers 438per acre: See labelnone listednone listed
Efficacy: not rated
Comments
Codling moth: Many pear growers in Washington use pheromones to help control codling moth. Pheromone dispensers must be in place before the first moth flight, that is prior to bloom. The number of dispenser units per acre will depend on the product used and pest pressure.

Hand-applied dispensers should be placed within the top 2 feet of the tree canopy. It is strongly recommended that full label rate of any hand-applied pheromone dispenser be used. Reducing the rate of hand-applied dispensers per acre can reduce efficacy and result in more damage from codling moth or require the use of more insecticides to achieve acceptable control. 

Some pear growers are using aerosol pheromone emitters (CheckMate CM-O Puffer and Isomate CM MIST) to control codling moth. This technology is used at a rate of one pheromone emitter per acre. WSU research has shown that the aerosol emitter technology works as good as a full rate (400 dispensers per acre) of a hand-applied dispenser technology.  However, the borders of orchards need to be treated with hand-applied pheromone dispensers to cover gaps resulting from the number of aerosol emitters that are applied per acre.

Pear petal fall
Grape mealybug
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 443per acre: 4 lb4 d21 d1B
Efficacy: +++(+)
acetamiprid (Assail 70WP) 446per acre: 2.3-3.4 oz12 h7 d4A
Efficacy: +++(+)
clothianidin (Clutch 50WDG) 449per acre: 4-6 oz12 h7 d4A
Efficacy: +++(+)
buprofezin (Centaur 70W) 6019per acre: 34.5 oz12 h14 d16
Efficacy: ++++
imidacloprid (Provado 1.6F) 6174per acre: 16-20 fl oz12 h7 d4A
Efficacy: +++(+)
Comments
Grape mealybug: thiamethoxam - PHI depends on rate used. See Hazards to Bees in text.
imidacloprid: Efficacy may be increased by adding 0.25% horticultural oil.
Pear petal fall
Leafroller (pandemis and obliquebanded)
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 452per acre: See label4 h0 d11B2
Efficacy: not rated
methoxyfenozide (Intrepid 2F) 453per acre: 16 fl oz4 h14 d18A
Efficacy: +++(+)
pyriproxyfen (Esteem 35WP) 454per acre: 4-5 oz12 h45 d7C
Efficacy: +++(+)
spinosad (Success 2F) 455per acre: 6-10 fl oz4 h7 d5
Efficacy: ++++
emamectin benzoate (Proclaim 5SG) 6006per acre: 3.2-4.8 oz12 h14 d6
Efficacy: ++++
spinetoram (Delegate 25WG) 6291per acre: 4.5-7 oz4 h7 d5
Efficacy: ++++
chlorantraniliprole (Altacor 35WDG) 6323per acre: 3-4.5 oz4 h5 d28
Efficacy: ++++
flubendiamide (Belt 4SC) 6324per acre: 5 fl oz12 h14 d28
Efficacy: not rated
Comments
Leafroller (pandemis and obliquebanded): Each product listed for leafroller control must be consumed by larvae in order to be effective. Therefore good spray coverage of the foliage is critical to achieving good control with these products.
chlorantraniliprole: Altacor is highly effective against leafroller larvae and, at this treatment timing, has the added value of being toxic to codling moth eggs laid on product residues (see recommendations under codling moth). It can therefore be used as part of a management strategy to delay the first larvicide application against codling moth. Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing for this product.
flubendiamide: Belt is in the same chemical class as Altacor and is very effective for control of leafroller larvae. However, Belt does not have ovicidal activity against codling moth eggs laid on its residues and therefore cannot be used as part of a strategy to delay the first larvicide treatment for codling moth. Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing for this product.
spinetoram: Delegate is effective against leafroller larvae. It has a residual activity of 14 days. Delegate is in the same chemical class, that is has the same mode of action, as Success (spinosad).
Bacillus thuringiensis subsp. kurstaki: Bt products should be timed to coincide with periods of warm weather when high temperatures are expected to reach 65 degrees for three consecutive days. Multiple applications are typically required to control high populations.
pyriproxyfen: Esteem should be applied when last stage larvae are present but before pupation has begun.
methoxyfenozide: Some leafroller populations have developed resistance to Intrepid and its use could results in reduced levels of control.
spinosad: Some leafroller populations have developed resistance to spinosad and its use could result in reduced levels of control.
Pear petal fall
Pear mildew
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 456per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
triflumizole (Procure 480SC) 6036per acre: 8-16 fl oz12 h14 d3
Efficacy: not rated
penthiopyrad (Fontelis) 6631per acre: 14-20 fl oz12h28d7
Efficacy: not rated
Comments
Pear mildew: Rotate fungicides with different modes of action (different chemical groups).
penthiopyrad: Fontelis and Aprovia are from the same chemical group. Use ONLY one of them for the same growth stage. Do not make more than 4 application per season for fungicides from the same group. Additional restriction may apply, check specefic labels.
kresoxim-methyl: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
Pear petal fall
Pear psylla
ProductRecommendationREIPHIMOA
petroleum oil-summer 459per acre: 0.25 % v/v4 h0 d
abamectin (Agri-Mek 0.15EC) 459per acre: 16-20 fl oz12 h28 d6
Efficacy: not rated
acetamiprid (Assail 70WP) 463per acre: 2.3-3.4 oz12 h7 d4A
Efficacy: ++++
pyriproxyfen (Esteem 35WP) 465per acre: 5 oz12 h45 d7C
Efficacy: ++(+)
fenpyroximate (FujiMite 5%EC) 466per acre: 1-2 pt12 h14 d21A
Efficacy: +++(+)
clothianidin (Clutch 50WDG) 467per acre: 4-6 oz12 h7 d4A
Efficacy: ++++
buprofezin (Centaur 70W) 6020per acre: 34.5 oz12 h14 d16
Efficacy: ++(+)
pyridaben (Nexter 75WSB) 6098per acre: 6.6-10.67 oz12 h7 d21A
Efficacy: +++(+)
imidacloprid (Provado 1.6F) 6175per acre: 15-20 fl oz12 h7 d4A
Efficacy: +++(+)
novaluron (Rimon 0.83EC) 6361per acre: 32 fl oz12 h14 d15
Efficacy: not rated
spinetoram (Delegate 25WG) 6362per acre: 5-7 oz4 h7 d5
Efficacy: not rated
Comments
spinetoram: Delegate is effective against leafroller larvae. It has a residual activity of 14 days. Delegate is in the same chemical class, that is has the same mode of action, as Success (spinosad).
pyriproxyfen: Esteem should be applied when last stage larvae are present but before pupation has begun.
imidacloprid: Efficacy may be increased by adding 0.25% horticultural oil.
novaluron: Do not apply after petal fall.
Pear petal fall
Pear rust mite
ProductRecommendationREIPHIMOA
fenbutatin oxide (Vendex 50WP) 469per acre: 1-1.5 lb48 h14 d12B
Efficacy: ++(++)
spirodiclofen (Envidor 2SC) 471per acre: 16-18 fl oz12 h7 d23
Efficacy: ++++
fenpyroximate (FujiMite 5%EC) 6109per acre: 2 pt12 h14 d21A
Efficacy: +++
pyridaben (Nexter 75WSB) 6110per acre: 6.6-10.67 oz12 h7 d21A
Efficacy: +++
abamectin (Agri-Mek 0.15EC) 6364per acre: 10-20 fl oz12 h28 d6
Efficacy: ++++
dicofol (Dicofol 4E) 6386per acre: 4 pt35 d7 dun
Efficacy: not rated
Pear petal fall
Pear scab
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 474per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
triflumizole (Procure 480SC) 6089per acre: 8-16 fl oz12 h14 d3
Efficacy: not rated
penthiopyrad (Fontelis) 6627per acre: 14-20 fl oz12h28d7
Efficacy: not rated
Comments
penthiopyrad: Fontelis and Aprovia are from the same chemical group. Use ONLY one of them for the same growth stage. Do not make more than 4 application per season for fungicides from the same group. Additional restriction may apply, check specefic labels.
kresoxim-methyl: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
Pear 14-32 days after full bloom
Codling moth
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 479per acre: 3.4 oz12 h7 d4A
Efficacy: not rated
methoxyfenozide (Intrepid 2F) 481per acre: 16 fl oz4 h14 d18A
Efficacy: ++(+)
thiacloprid (Calypso 4F) 482per acre: 6-8 fl oz12 h30 d4A
Efficacy: +++(+)
diflubenzuron (Dimilin 2L) 6164per acre: 16 fl oz12 h14 d15
Efficacy: not rated
chlorantraniliprole (Altacor 35WDG) 6240per acre: 3-4.5 oz4 h5 d28
Efficacy: ++++
spinetoram (Delegate 25WG) 6241per acre: 6-7 oz4 h7 d5
Efficacy: ++++
Comments
Codling moth: Some orchards are experiencing lower levels of control with organophosphate insecticides. Alternative products should be used in these situations to improve control. To minimize the development of codling moth resistance to new insecticides you should use a class of insecticide against only one generation per year.
thiacloprid: Only for use on oriental pears
Pear late spring and summer
Codling moth
ProductRecommendationREIPHIMOA
methoxyfenozide (Intrepid 2F) 486per acre: 16 fl oz4 h14 d18A
Efficacy: ++(+)
acetamiprid (Assail 70WP) 487per acre: 3.4 oz12 h7 d4A
Efficacy: not rated
pyriproxyfen (Esteem 35WP) 488per acre: 5 oz12 h45 d7C
Efficacy: +++
thiacloprid (Calypso 4F) 490per acre: 6-8 fl oz12 h30 d4A
Efficacy: +++(+)
diflubenzuron (Dimilin 2L) 6165per acre: 16 fl oz12 h14 d15
Efficacy: not rated
chlorantraniliprole (Altacor 35WDG) 6242per acre: 3-4.5 oz4 h5 d28
Efficacy: ++++
spinetoram (Delegate 25WG) 6292per acre: 6-7 oz4 h7 d5
Efficacy: ++++
Comments
Codling moth: Intrepid, Esteem, Dimilin, Altacor and Delegate are primarily stomach poisons and therefore excellent spray coverage of the foliage and fruit is required to achieve acceptable control.

RESISTANCE MANAGEMENT: To minimize the development of codling moth resistance to any unique class of insecticide products in the class should not be used against consecutive generations. A sound resistance management program therefore requires the use of different classes of insecticide against consecutive generations. Some orchards are experiencing lower levels of control with organophosphate insecticides. Alternative products should be used in these situations to improve control.
thiacloprid: Only for use on oriental pears
methoxyfenozide: Some leafroller populations have developed resistance to methoxyfenozide and its use could result in reduced levels of control.
Pear late spring and summer
Fire blight
ProductRecommendationREIPHIMOA
Bacillus subtilis strain QST 713 (Serenade Max) 493per acre: 2-3 lb4 h0 d
Efficacy: not rated
Pear late spring and summer
Grape mealybug
ProductRecommendationREIPHIMOA
imidacloprid (Provado 1.6F) 497per acre: 16-20 fl oz12 h7 d4A
Efficacy: +++(+)
acetamiprid (Assail 70WP) 500per acre: 3.4 oz12 h7 d4A
Efficacy: +++(+)
thiacloprid (Calypso 4F) 501per acre: 6-8 fl oz12 h30 d4A
Efficacy: +++(+)
clothianidin (Clutch 50WDG) 502per acre: 4-6 oz12 h7 d4A
Efficacy: +++(+)
buprofezin (Centaur 70W) 6021per acre: 34.5 oz12 h14 d16
Efficacy: ++++
Comments
thiacloprid: Only for use on oriental pears
imidacloprid: Efficacy may be increased by adding 0.25% horticultural oil.
Pear late spring and summer
Grasshoppers
ProductRecommendationREIPHIMOA
carbaryl (Sevin 4F) 6068per acre: 2 pt12 h3 d1A
Efficacy: not rated
Comments
Grasshoppers: See text: Special Programs -- Grasshoppers
carbaryl: If used in apple/pear interplant blocks, carbaryl may disrupt biological mite control, depending on history of use. Do not apply carbaryl prior to 30 days after full bloom.
Pear late spring and summer
McDaniel spider mite, twospotted spider mite, European red mite
ProductRecommendationREIPHIMOA
abamectin (Agri-Mek 0.15EC) 508per acre: 10-20 fl oz12 h28 d6
petroleum oil-summer 508per acre: 0.25 % v/v4 h0 d
Efficacy: not rated
clofentezine (Apollo 4SC) 509per acre: 4-8 fl oz12 h21 d10A
Efficacy: ++(++)
fenbutatin oxide (Vendex 50WP) 511per acre: 1.5-2 lb48 h14 d12B
Efficacy: +(+++)
hexythiazox (Savey 50DF) 512per acre: 4-6 oz12 h28 d10A
Efficacy: ++(++)
bifenazate (Acramite 50WS) 514per acre: 0.75-1 lb12 h7 dun
Efficacy: ++++
etoxazole (Zeal 72WDG) 515per acre: 3 oz12 h14 d10B
Efficacy: ++++
fenpyroximate (FujiMite 5%EC) 516per acre: 1-2 pt12 h14 d21A
Efficacy: ++++
spirodiclofen (Envidor 2SC) 517per acre: 16-18 fl oz12 h7 d23
Efficacy: ++++
pyridaben (Nexter 75WSB) 6100per acre: 4.4-10.67 oz12 h7 d21A
Efficacy: ++(++)
acequinocyl (Kanemite 15SC) 6101per acre: 21-31 fl oz12 h14 d20B
Efficacy: not rated
dicofol (Dicofol 4E) 6387per acre: 4 pt35 d7 dun
Efficacy: not rated
Comments
McDaniel spider mite, twospotted spider mite, European red mite: Clofentezine and hexythiazox are ovicides. When initial mite populations are high, use in combination with an adulticide.
pyridaben: Use 4.4 to 5.2 oz/A for ERM; use 6.6 to 10.67 oz/A for twospotted and McDaniel spider mites.
fenbutatin oxide: Resistance to fenbutatin-oxide exists in many areas.
Pear late spring and summer
Pandemis leafroller, obliquebanded learoller
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 518per acre: See label4 h0 d11B2
Efficacy: not rated
methoxyfenozide (Intrepid 2F) 519per acre: 16 fl oz4 h14 d18A
Efficacy: +++(+)
spinosad (Success 2F) 520per acre: 6-10 fl oz4 h7 d5
Efficacy: ++++
emamectin benzoate (Proclaim 5SG) 6007per acre: 3.2-4.8 oz12 h14 d6
Efficacy: ++++
chlorantraniliprole (Altacor 35WDG) 6243per acre: 3-4.5 oz4 h5 d28
Efficacy: ++++
spinetoram (Delegate 25WG) 6244per acre: 4.5-7 oz4 h7 d5
Efficacy: ++++
Comments
Pandemis leafroller, obliquebanded learoller: Each product listed for leafroller control must be consumed by larvae in order to be effective. Therefore good spray coverage of the foliage is critical to achieving good control with these products.
Bacillus thuringiensis subsp. kurstaki: Two or three applications are usually required. Apply when forecasts predict a warm weather pattern for 3 or more days.
methoxyfenozide: Some leafroller populations have developed resistance to methoxyfenozide and its use could result in reduced levels of control.
spinosad: Some leafroller populations have developed resistance to spinosad and its use could results in reduced levels of control.
Pear late spring and summer
Pearleaf blister mite
ProductRecommendationREIPHIMOA
carbaryl (Sevin 4F) 521per acre: 4-6 pt12 h3 d1A
Efficacy: not rated
petroleum oil-summer 522per acre: 0.25 % v/v4 h0 d
abamectin (Agri-Mek 0.15EC) 522per acre: 16 fl oz12 h28 d6
Efficacy: not rated
Comments
carbaryl: If used in apple/pear interplant blocks, carbaryl may disrupt biological mite control, depending on history of use. Do not apply carbaryl prior to 30 days after full bloom.
Pear late spring and summer
Pear psylla
ProductRecommendationREIPHIMOA
petroleum oil-summer 523per acre: 0.25 % v/v4 h0 d
abamectin (Agri-Mek 0.15EC) 523per acre: 16-20 fl oz12 h28 d6
Efficacy: not rated
imidacloprid (Provado 1.6F) 525per acre: 16-20 fl oz12 h7 d4A
Efficacy: +++(+)
acetamiprid (Assail 70WP) 528per acre: 2.3-3.4 oz12 h7 d4A
Efficacy: ++++
azadirachtin (Aza-Direct 1.2%L) 529per acre: See label4 h0 dun
Efficacy: ++(+)
thiacloprid (Calypso 4F) 530per acre: 6-8 fl oz12 h30 d4A
Efficacy: ++++
fenpyroximate (FujiMite 5%EC) 531per acre: 1-2 pt12 h14 d21A
Efficacy: +++(+)
clothianidin (Clutch 50WDG) 532per acre: 4-6 oz12 h7 d4A
Efficacy: ++++
buprofezin (Centaur 70W) 6022per acre: 34.5 oz12 h14 d16
Efficacy: ++(+)
pyridaben (Nexter 75WSB) 6099per acre: 6.6-10.67 oz12 h7 d21A
Efficacy: +++(+)
spinetoram (Delegate 25WG) 6365per acre: 5-7 oz4 h7 d5
Efficacy: not rated
spirotetramat (Ultor 1.25L) 6366per acre: 10-14 fl oz24 h7 d23
Efficacy: +++(+)
Comments
azadirachtin: These products have relatively short residues; reapplication may be necessary for control. Severe phytoxicity may occur if applied to pear cultivars with Comice background.
thiacloprid: Only for use on oriental pears
pyridaben: Use 4.4 to 5.2 oz/A for ERM; use 6.6 to 10.67 oz/A for twospotted and McDaniel spider mites.
imidacloprid: Efficacy may be increased by adding 0.25% horticultural oil.
Pear late spring and summer
Pear rust mite
ProductRecommendationREIPHIMOA
fenbutatin oxide (Vendex 50WP) 533per acre: 1.5-2 lb48 h14 d12B
Efficacy: ++(++)
spirodiclofen (Envidor 2SC) 536per acre: 16-18 fl oz12 h7 d23
Efficacy: ++++
pyridaben (Nexter 75WSB) 6102per acre: 10.67 oz12 h7 d21A
Efficacy: +++
fenpyroximate (FujiMite 5%EC) 6108per acre: 2 pt12 h14 d21A
Efficacy: +++
abamectin (Agri-Mek 0.15EC) 6367per acre: 10-20 fl oz12 h28 d6
Efficacy: ++++
dicofol (Dicofol 4E) 6388per acre: 4 pt35 d7 dun
Efficacy: not rated
Comments
pyridaben: Use 4.4 to 5.2 oz/A for ERM; use 6.6 to 10.67 oz/A for twospotted and McDaniel spider mites.
fenbutatin oxide: Resistance to fenbutatin-oxide exists in many areas.
Pear late spring and summer
Pear scab
ProductRecommendationREIPHIMOA
kresoxim-methyl (Sovran 50WG) 539per acre: 4-6.4 oz12 h30 d11
Efficacy: not rated
trifloxystrobin (Flint 50W) 540per acre: 2-2.5 oz12 h14 d11
Efficacy: not rated
penthiopyrad (Fontelis) 6628per acre: 14-20 fl oz12h28d7
Efficacy: not rated
Comments
Flint and Sovran: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
penthiopyrad: Fontelis and Aprovia are from the same chemical groups. Une one of them ONLY for the same growth stage.
kresoxim-methyl: Apply every 12 days until dry weather. See note for Flint.
Pear late spring and summer
San Jose scale
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 541per acre: 4 lb4 d21 d1B
Efficacy: +++
Pear preharvest
Bull's eye rot
ProductRecommendationREIPHIMOA
ziram (Ziram Granuflo 76WDG) 6495per acre: 8 lb48 h5 dM3
Efficacy: not rated
Comments
ziram: Because of visible residues, do not use ziram on Asian pears.
Pear preharvest
Storage rots
ProductRecommendationREIPHIMOA
ziram (Ziram 76DF) 544per acre: 8 lb48 h14 dM3
Efficacy: not rated
pyraclostrobin+boscalid (Pristine) 545per acre: 14.5-18.5 oz12 h0 d11,7
Efficacy: not rated
thiophanate-methyl (Topsin M 70WP) 6429per acre: 1 lb2 d1 d1
Efficacy: not rated
Comments
Storage rots: A ground applied, dilute application leading to excellent coverage is essential for the control of storage rots.
pyraclostrobin+boscalid: To limit the potential for development of fungicide resistance, do not make more than four applications of strobilurin fungicides per season. Do not make more than two sequential applications of strobilurin fungicides. This limitation is inclusive to all strobilurin fungicides labeled for use on pome fruits.
thiophanate-methyl: Topsin M and Mertect belong to the same class of fungicide. If Mertect is routinely used as a postharvest treatment for decay control at the packinghouse, do not use Topsin M as a preharvest spray in the field.
Pear postharvest
Pear rust mite, pearleaf blister mite
ProductRecommendationREIPHIMOA
carbaryl (Sevin 4F) 546per acre: 4-6 pt12 h3 d1A
Efficacy: +++
sulfur, dry flowable 549per acre: See label24 hnone listedM2
Efficacy: not rated
Comments
carbaryl: If used in apple/pear interplant blocks, carbaryl may disrupt biological mite control, depending on history of use.
Pear postharvest
Pear psylla
ProductRecommendationREIPHIMOA
sulfur, dry flowable 551per acre: See label24 hnone listedM2
Efficacy: not rated
lime sulfur/calcium polysulfide 552per acre: See label48 hnone listed
Efficacy: not rated
Cherry dormant
Coryneum blight, bacterial gummosis
ProductRecommendationREIPHIMOA
copper hydroxide (Kocide 3000) 553per acre: See label48 h0 dM1
fixed copper (Basic Copper 53) 554per acre: See label24 h0 dM1
Comments
Coryneum blight, bacterial gummosis: Rates vary according to manufacturer. To best control gummosis, apply copper sprays before break of dormancy, frost, and wet weather.
Cherry delayed dormant
Black cherry aphid
ProductRecommendationREIPHIMOA
petroleum oil- dormant 555per acre: 1-1.5 % v/v12 hnone listed
Comments
petroleum oil- dormant: Liquid formulations are preferred with oils, and tank agitation is required. Do not use more than 5 gallons of oil per acre concentrate on mature trees. See text—Special Programs.
Cherry delayed dormant
Cutworms
ProductRecommendationREIPHIMOA
indoxacarb (Avaunt 30DG) 6521per acre: 6 oz12 h14 d22A
Comments
Cutworms: Apply thoroughly to lower trunk and cover crop with a handgun.
Cherry delayed dormant
European red mite
ProductRecommendationREIPHIMOA
petroleum oil- dormant 560per acre: 1-1.5 % v/v12 hnone listed
clofentezine (Apollo 4SC) 561per acre: 4-8 fl oz12 h21 d10A
hexythiazox (Savey 50DF) 562per acre: 4-6 oz12 h28 d10A
Comments
petroleum oil- dormant: Liquid formulations are preferred with oils, and tank agitation is required. Do not use more than 5 gallons of oil per acre concentrate on mature trees. See text—Special Programs.
Cherry delayed dormant
Twospotted spider mite
ProductRecommendationREIPHIMOA
fenbutatin oxide (Vendex 50WP) 563per acre: 1-2 lb48 h14 d12B
Cherry delayed dormant
San Jose scale, lecanium scale
ProductRecommendationREIPHIMOA
chlorpyrifos (Lorsban Advanced) 564per acre: 4 pt4 dNL1B
petroleum oil- dormant 564per acre: 1-1.5 % v/v12 hnone listed
methidathion (Supracide 25W) 565per acre: 6 lb48 h-14 d (see label)none listed1B
petroleum oil- dormant 565per acre: 1-1.5 % v/v12 hnone listed
petroleum oil- dormant 6325per acre: 6 gal12 hnone listed
Comments
San Jose scale, lecanium scale: Oil plus an organophosphate is preferred because the combination provides the most effective control for scale insects and other pests.
petroleum oil- dormant: Liquid formulations are preferred with oils, and tank agitation is required. Do not use more than 5 gallons of oil per acre concentrate on mature trees. See text—Special Programs.
Cherry prebloom
Black cherry aphid
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 569per acre: 4 lb4 d21 d1B
Cherry prebloom
Coryneum blight (shothole)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 570per acre: 11-15 fl oz4 h0 d11
pyraclostrobin+boscalid (Pristine) 571per acre: 10.5-14.5 oz12 h0 d11,7
copper hydroxide (Kocide 3000) 6145per acre: See label48 h0 dM1
ziram (Ziram Granuflo 76WDG) 6145per acre: 4-6 lb48 h14 dM3
copper hydroxide (Kocide 3000) 6146per acre: See label48 h0 dM1
tebuconazole+trifloxystrobin (Adament 50WG) 6403per acre: 4-8 oz12h1d3, 11
penthiopyrad (Fontelis) 6603per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6623per acre: 12-14 fl oz12h0d11, 3
trifloxystrobin (Gem 25W) 6738per acre: 6-8 oz12 h1 d11
Comments
azoxystrobin: Abound is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
Cherry prebloom
Cutworms
ProductRecommendationREIPHIMOA
indoxacarb (Avaunt 30DG) 6520per acre: 6 oz12 h14 d22A
Comments
Cutworms: Apply thoroughly to lower trunk and cover crop with a handgun.
Cherry prebloom
Pandemis leafroller
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 576per acre: See label4 h0 d11B2
spinosad (Success 2F) 577per acre: 4-8 fl oz4 h7 d5
spinosad (Entrust 80W) 6198per acre: 1.25-2.5 oz4 h7 d5
Comments
Pandemis leafroller: Pandemis may build up if oil/chlorpyrifos sprays have not been applied in recent years, especially when cherry orchard is near apple and pear orchards.
Bacillus thuringiensis subsp. kurstaki: Bts are stomach poisons so complete coverage is very important for control. Two or three applications are usually required. Apply when forecasts predict a warm weather pattern for 3 or more days. This spray timing is too early to control obliquebanded leafroller.
spinosad: Entrust is a spinosad formulation registered for organic production
Cherry bloom
Brown rot
ProductRecommendationREIPHIMOA
sulfur, dry flowable 582per acre: See label24 hnone listedM2
myclobutanil (Rally 40WSP) 583per acre: 5 oz24 h0 d3
tebuconazole+trifloxystrobin (Adament 50WG) 6404per acre: 4-8 oz12h1d3, 11
metconazole (Quash 50WDG) 6442per acre: 2.5-3.5 oz12h14d3
azoxystrobin+difenoconazole (Quadris Top) 6548per acre: 12-14 fl oz12h0d11, 3
triflumizole (Procure 480SC) 6717per acre: 10-16 fl oz12 h1 d3
Comments
Brown rot: Many fungicide materials are effective on both brown rot and powdery mildew. Powdery mildew requires more sprays, and resistance is always a risk. Use the above products on brown rot, as they are effective, and mildew sprays are not effective at this stage of tree growth. Neither iprodione nor fenbuconazole are first-rate powdery mildew materials.
triflumizole: Do not apply more than 96 fl. oz. of PROCURE 480SC per acre per season.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
myclobutanil: Place into solution before adding oil. Make a second application at petal fall if disease-conducive weather occurs.
Cherry bloom
Coryneum blight (shothole)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 588per acre: 11-15 fl oz4 h0 d11
pyraclostrobin+boscalid (Pristine) 589per acre: 10.5-14.5 oz12 h0 d11,7
tebuconazole+trifloxystrobin (Adament 50WG) 6400per acre: 4-8 oz12h1d3, 11
penthiopyrad (Fontelis) 6604per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6624per acre: 12-14 fl oz12h0d11, 3
Comments
azoxystrobin: Abound is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label. Do not apply more than 2.88 quarts product per acre per season.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
Cherry bloom
Powdery mildew
ProductRecommendationREIPHIMOA
myclobutanil (Rally 40WSP) 590per acre: 5 oz24 h0 d3
azoxystrobin (Abound 2.08F) 591per acre: 11-15 fl oz4 h0 d11
potassium bicarbonate (Kaligreen) 594per acre: See label4 h1 dNC
pyraclostrobin+boscalid (Pristine) 596per acre: 10.5-14.5 oz12 h0 d11,7
quinoxyfen (Quintec 2.08L) 597per acre: 7 fl oz12 h7 d13
tebuconazole+trifloxystrobin (Adament 50WG) 6395per acre: 4-8 oz12h1d3, 11
metconazole (Quash 50WDG) 6443per acre: 3.5-4 oz12h14d3
penthiopyrad (Fontelis) 6501per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6547per acre: 12-14 fl oz12h0d11, 3
triflumizole (Procure 480SC) 6701per acre: 8-16 fl oz12 h1 d3
flutriafol (Topguard) 6744per acre: 6-8 fl oz12 h7d3
azoxystrobin (Abound 2.08F) 6745per acre: 15.5 See label4 h0 d11
trifloxystrobin (Gem 25W) 6749per acre: 4-8 oz12 h1 d11
cyprodinil+difenoconazole (Inspire Super) 6770per acre: 16-20 fl oz12h2d9,3
cyprodinil+difenoconazole (Inspire Super) 6770per acre: 16-20 fl oz12h2d9,3
Comments
azoxystrobin: Abound is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label. Do not apply more than 2.88 quarts product per acre per season.
triflumizole: Do not apply more than 96 fl. oz. of PROCURE 480SC per acre per season.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
myclobutanil: Place into solution before adding oil. Make a second application at petal fall if disease-conducive weather occurs.
flutriafol: Azoxystrobin component is very phytotoxic to some apple varieties (ie those with a gala heritage).
Cherry petal fall
Brown rot (blossom blight)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 600per acre: 12-15.5 fl oz4 h0 d11
captan (Captan 50WP) 601per acre: 4 lb24 h0 dM4
sulfur, dry flowable 604per acre: See label24 hnone listedM2
myclobutanil (Rally 40WSP) 605per acre: 5 oz24 h0 d3
pyraclostrobin+boscalid (Pristine) 609per acre: 10.5-14.5 oz12 h0 d11,7
tebuconazole+trifloxystrobin (Adament 50WG) 6405per acre: 4-8 oz12h1d3, 11
metconazole (Quash 50WDG) 6444per acre: 2.5-3.5 oz12h14d3
azoxystrobin+difenoconazole (Quadris Top) 6549per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6605per acre: 14-20 fl oz12h0d7
triflumizole (Procure 480SC) 6715per acre: 10-16 fl oz12 h1 d3
Comments
azoxystrobin: Abound is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
captan: Do not apply Captan if oil will be used at any time for mildew control.
triflumizole: Do not apply more than 96 fl. oz. of PROCURE 480SC per acre per season.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
Cherry petal fall
Fruittree leafroller
ProductRecommendationREIPHIMOA
spinetoram (Delegate 25WG) 6514per acre: 4.5-7 oz4 h7 d5
chlorantraniliprole (Altacor 35WDG) 6522per acre: 4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 6523per acre: 4 fl oz12 h7 d28
Cherry petal fall
Pandemis leafroller, obliquebanded leafroller
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 611per acre: See label4 h0 d11B2
spinosad (Success 2F) 612per acre: 4-8 fl oz4 h7 d5
methoxyfenozide (Intrepid 2F) 6009per acre: 8-16 fl oz4 h7 d18A
spinosad (Entrust 80W) 6199per acre: 1.25-2.5 oz4 h7 d5
chlorantraniliprole (Altacor 35WDG) 6524per acre: 4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 6525per acre: 4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 6637per acre: 4.5-7 oz4 h7 d5
Comments
Pandemis leafroller, obliquebanded leafroller: If treatments for leafrollers were applied prior to this timing, sampling to determine the density of surviving leafrollers should be completed prior to deciding to apply additional controls.  

Most products listed act primarily as stomach poisons verses direct contact to residues, therefore, complete coverage is very important to achieve maximal control. Repeating an application of any product should be based on the leafroller population surviving previous treatments.  

Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing.
Bacillus thuringiensis subsp. kurstaki: Apply when warm weather is predicted for 3 or more days. Two or three applications per pest generation may be required to achieve adequate control.
spinosad: Entrust is a spinosad formulation registered for organic cherry production.
methoxyfenozide: Some leafroller populations have developed resistance to Intrepid and its use could result in reduced levels of control.
spinosad: Some leafroller populations have developed resistance to spinosad products and repeated use of these products during the growing season could result in reduced levels of control.

Cherry petal fall
Powdery mildew
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 6046per acre: 11-15 fl oz4 h0 d11
potassium bicarbonate (Kaligreen) 6049per acre: See label4 h1 dNC
pyraclostrobin+boscalid (Pristine) 6050per acre: 10.5-14.5 oz12 h0 d11,7
quinoxyfen (Quintec 2.08L) 6051per acre: 7 fl oz12 h7 d13
metconazole (Quash 50WDG) 6460per acre: 4 oz12h14d3
penthiopyrad (Fontelis) 6504per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6550per acre: 12-14 fl oz12h0d11, 3
triflumizole (Procure 480SC) 6714per acre: 8-16 fl oz12 h1 d3
flutriafol (Topguard) 6742per acre: 6-8 fl oz12 h7d3
flutriafol (Topguard) 6743per acre: 6-8 fl oz12 h7d3
cyprodinil+difenoconazole (Inspire Super) 6771per acre: 16-20 fl oz12h2d9,3
Comments
azoxystrobin: Abound is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
triflumizole: Do not apply more than 96 fl. oz. of PROCURE 480SC per acre per season.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
flutriafol: Azoxystrobin component is very phytotoxic to some apple varieties (ie those with a gala heritage).
Cherry shuck fall
Black cherry aphid
ProductRecommendationREIPHIMOA
acetamiprid (Assail 70WP) 6320per acre: 2.3 oz12 h7 d4A
Cherry shuck fall
Brown rot
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 622per acre: 12-15.5 fl oz4 h0 d11
captan (Captan 50WP) 623per acre: 4 lb24 h0 dM4
sulfur, dry flowable 626per acre: See label24 hnone listedM2
myclobutanil (Rally 40WSP) 627per acre: 5 oz24 h0 d3
pyraclostrobin+boscalid (Pristine) 631per acre: 10.5-14.5 oz12 h0 d11,7
tebuconazole+trifloxystrobin (Adament 50WG) 6406per acre: 4-8 oz12h1d3, 11
metconazole (Quash 50WDG) 6445per acre: 2.5-3.5 oz12h14d3
azoxystrobin+difenoconazole (Quadris Top) 6551per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6606per acre: 14-20 fl oz12h0d7
triflumizole (Procure 480SC) 6716per acre: 10-16 fl oz12 h1 d3
Comments
azoxystrobin: Abound is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
captan: Do not use Captan if using oil for mildew control.
sulfur, dry flowable: Do not apply within 14 days of an oil application.
triflumizole: Do not apply more than 96 fl. oz. of PROCURE 480SC per acre per season.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
myclobutanil: Place into solution before adding oil.
Cherry shuck fall
Coryneum blight (shothole)
ProductRecommendationREIPHIMOA
captan (Captan 50WP) 632per acre: 4 lb24 h0 dM4
azoxystrobin (Abound 2.08F) 633per acre: 11-15 fl oz4 h0 d11
pyraclostrobin+boscalid (Pristine) 634per acre: 10.5-14.5 oz12 h0 d11,7
tebuconazole+trifloxystrobin (Adament 50WG) 6402per acre: 4-8 oz12h1d3, 11
azoxystrobin+difenoconazole (Quadris Top) 6607per acre: 12-14 fl oz12h0d11, 3
Comments
azoxystrobin: Abound is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
captan: Do not use Captan if using oil for mildew control.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
Cherry shuck fall
Leafroller (pandemis, obliquebanded, and fruittree)
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 635per acre: See label4 h0 d11B2
spinosad (Success 2F) 636per acre: 6-8 fl oz4 h7 d5
pyriproxyfen (Esteem 35WP) 637per acre: 4-5 oz12 h14 d7C
methoxyfenozide (Intrepid 2F) 6010per acre: 8-16 fl oz4 h7 d18A
spinosad (Entrust 80W) 6200per acre: 1.25-2.5 oz4 h7 d5
spinetoram (Delegate 25WG) 6245per acre: 4.5-7 oz4 h7 d5
chlorantraniliprole (Altacor 35WDG) 6246per acre: 3-4.5 oz4 h10 d28
Comments
Leafroller (pandemis, obliquebanded, and fruittree): If treatments for leafrollers were applied prior to this timing, sampling to determine the density of surviving leafrollers should be completed prior to deciding to apply additional controls.  

Most products listed act primarily as stomach poisons verses direct contact to residues, therefore, complete coverage is very important to achieve maximal control. Repeating an application of any product should be based on the leafroller population surviving previous treatments.  

Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing.
Bacillus thuringiensis subsp. kurstaki: Two or three applications are usually required. Apply when forecasts predict a warm weather pattern for 3 or more days.
spinosad: Entrust is a spinosad formulation registered for organic cherry production.
pyriproxyfen: Time pyriproxyfen to coincide with the presence of the last larval stage but before pupae are present.
methoxyfenozide: Some leafroller populations have developed resistance to Intrepid and its use could results in reduced levels of control.
spinosad: Some leafroller populations have developed resistance to spinosad products and repeated use of these products during the growing season could result in reduced levels of control.

Cherry shuck fall
Powdery mildew
ProductRecommendationREIPHIMOA
myclobutanil (Rally 40WSP) 639per acre: 5 oz24 h0 d3
sulfur, dry flowable 641per acre: See label24 hnone listedM2
azoxystrobin (Abound 2.08F) 643per acre: 11-15 fl oz4 h0 d11
potassium bicarbonate (Kaligreen) 647per acre: See label4 h1 dNC
pyraclostrobin+boscalid (Pristine) 649per acre: 10.5-14.5 oz12 h0 d11,7
quinoxyfen (Quintec 2.08L) 650per acre: 7 fl oz12 h7 d13
tebuconazole+trifloxystrobin (Adament 50WG) 6396per acre: 4-8 oz12h1d3, 11
metconazole (Quash 50WDG) 6446per acre: 3.5-4 oz12h14d3
penthiopyrad (Fontelis) 6509per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6552per acre: 12-14 fl oz12h0d11, 3
cyprodinil+difenoconazole (Inspire Super) 6803per acre: See label12h2d9,3
Comments
azoxystrobin: Abound is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
sulfur, dry flowable: Do not apply within 14 days of an oil application.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
myclobutanil: Place into solution before adding oil.
Cherry shuck fall
White apple leafhopper
ProductRecommendationREIPHIMOA
carbaryl (Sevin 4F) 651per acre: 1-2 pt12 h3 d1A
Comments
White apple leafhopper: Effective against nymphs; if adults of other leafhopper species are present, they will be more difficult to control.
Cherry late spring and summer
Brown rot (fruit rot)
ProductRecommendationREIPHIMOA
sulfur, dry flowable 655per acre: See label24 hnone listedM2
captan (Captan 50WP) 656per acre: 4 lb24 h0 dM4
pyraclostrobin+boscalid (Pristine) 660per acre: 10.5-14.5 oz12 h0 d11,7
tebuconazole+trifloxystrobin (Adament 50WG) 6407per acre: 4-8 oz12h1d3, 11
metconazole (Quash 50WDG) 6447per acre: 2.5-3.5 oz12h14d3
azoxystrobin+difenoconazole (Quadris Top) 6553per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6608per acre: 14-20 fl oz12h0d7
Comments
sulfur, dry flowable: See text -- Potential Fruit and Leaf Injury
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
Cherry late spring and summer
Cherry rust mite
ProductRecommendationREIPHIMOA
sulfur, dry flowable 661per acre: See label24 hnone listedM2
fenbutatin oxide (Vendex 50WP) 663per acre: 1-2 lb48 h14 d12B
Comments
sulfur, dry flowable: See text -- Potential Fruit and Leaf Injury
Cherry late spring and summer
Pandemis leafroller, obliquebanded leafroller
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 664per acre: See label4 h0 d11B2
spinosad (Success 2F) 665per acre: 4-8 fl oz4 h7 d5
pyriproxyfen (Esteem 35WP) 666per acre: 4-5 oz12 h14 d7C
methoxyfenozide (Intrepid 2F) 667per acre: 8-16 fl oz4 h7 d18A
spinosad (Entrust 80W) 6201per acre: 1.25-2.5 oz4 h7 d5
chlorantraniliprole (Altacor 35WDG) 6247per acre: 3-4.5 oz4 h10 d28
spinetoram (Delegate 25WG) 6248per acre: 4.5-7 oz4 h7 d5
flubendiamide (Belt 4SC) 6526per acre: 4 fl oz12 h7 d28
Comments
Pandemis leafroller, obliquebanded leafroller: If treatments for leafrollers were applied prior to this timing, sampling to determine the density of surviving leafrollers should be completed prior to deciding to apply additional controls.  

Most products listed act primarily as stomach poisons verses direct contact to residues, therefore, complete coverage is very important to achieve maximal control. Repeating an application of any product should be based on the leafroller population surviving previous treatments.  

Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing.
Bacillus thuringiensis subsp. kurstaki: Two or three applications are usually required to achieve acceptable control of high populations.
spinosad: Entrust is a spinosad formulation registered for organic production
pyriproxyfen: Time pyriproxyfen to coincide with the presence of the last larvae stage but before pupae appear. Timing for leafrollers should also provide control of scale.
methoxyfenozide: Some leafroller populations have developed resistance to Intrepid and its use could result in reduced levels of control.
spinosad: Some leafroller populations have developed resistance to spinosad products and repeated use of these products during the growing season could result in reduced levels of control.

Cherry late spring and summer
Powdery mildew
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 668per acre: 11-15 fl oz4 h0 d11
sulfur, dry flowable 670per acre: See label24 hnone listedM2
myclobutanil (Rally 40WSP) 671per acre: 5 oz24 h0 d3
potassium bicarbonate (Kaligreen) 676per acre: See label4 h1 dNC
pyraclostrobin+boscalid (Pristine) 678per acre: 10.5-14.5 oz12 h0 d11,7
quinoxyfen (Quintec 2.08L) 679per acre: 7 fl oz12 h7 d13
tebuconazole+trifloxystrobin (Adament 50WG) 6401per acre: 4-8 oz12h1d3, 11
metconazole (Quash 50WDG) 6448per acre: 3.5-4 oz12h14d3
penthiopyrad (Fontelis) 6508per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6554per acre: 12-14 fl oz12h0d11, 3
cyprodinil+difenoconazole (Inspire Super) 6772per acre: 16-20 fl oz12h2d9,3
cyprodinil+difenoconazole (Inspire Super) 6773per acre: 16-20 fl oz12h2d9,3
Comments
azoxystrobin: Abound is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
sulfur, dry flowable: See text -- Potential Fruit and Leaf Injury
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
myclobutanil: Place into solution before adding oil.
Cherry late spring and summer
San Jose scale, lecanium scale
ProductRecommendationREIPHIMOA
pyriproxyfen (Esteem 35WP) 681per acre: 4-5 oz12 h14 d7C
Comments
pyriproxyfen: Time pyriproxyfen to coincide with the presence of the last larvae stage but before pupae appear. Timing for leafrollers should also provide control of scale.
Cherry late spring and summer
Shothole borer
ProductRecommendationREIPHIMOA
esfenvalerate (Asana XL) 6527per acre: 14.5 fl oz12 h14 d3A
acetamiprid (Assail 30SG) 6528per acre: 8 oz12 h7 d4A
Comments
Shothole borer: Good sanitation (removing large wood pruning and wood piles from the orchard) is the best management tactic. Insecticides are only effective against adults. Beetles begin flying in late April and are active through May. The second generation flight begins in late July or early August. Yellow sticky traps placed on orchard borders will detect activity of the adult beetles. Spraying the border trees (rows) with high water volumes will protect the remainder of the orchard in many situations where external sources are the primary problem.
Cherry late spring and summer
Spider mites
ProductRecommendationREIPHIMOA
fenbutatin oxide (Vendex 50WP) 683per acre: 1-2 lb48 h14 d12B
Comments
Spider mites: Apply sprays in early May.
Cherry late spring and summer
Western cherry fruit fly
ProductRecommendationREIPHIMOA
malathion (Malathion ULV ) 687per acre: 16 fl oz12 h1 d1B
carbaryl (Sevin XLR Plus) 689per acre: 4 pt12 h3 d1A
spinosad (Success 2F) 690per acre: 4-6 fl oz4 h7 d5
spinosad (Entrust 80W) 691per acre: 1.5-1.88 oz4 h7 d5
spinosad (GF-120 0.02% Bait) 692per acre: 20 fl oz4 h0 d5
spinetoram (Delegate 25WG) 6210per acre: 4-4.5 oz4 h7 d5
acetamiprid (Assail 70WP) 6321per acre: 2.3-3.4 oz12 h7 d4A
Comments
Western cherry fruit fly: spotted wing drosophila may be present in the orchard at the same time as cherry fruit fly. If so, check that the products chosen will control both pests. Spray interval is important. More than 7 - 10 days between applications is risky. Shorten intervals after significant rain.
spinosad: Entrust is a spinosad formulation registered for organic production
spinosad: a spinosad formulation registered specifically for management of Tephritid fruit flies. This product has not proven sufficiently effective for the control of spotted wing drosophila. Monitor carefully for SWD if you use this bait. Apply to alternate rows with special auxiliary applicator; dilute with no more than 3 quarts of water per acre. Re-apply after rain. For application method, see label and web site http://county.wsu.edu/chelan-douglas/agriculture/treefruit/Pages/Cherry_Fly_Bait.aspx.
malathion: Apply malathion ULV by air only (ULV is NOT mixed with any water) (see text--Aerial Application). Malathion Aquamul 8 applied by ground may cause leaf injury.
carbaryl: WARNING: multiple applications of carbaryl may cause mite problems.
spinosad: Some leafroller populations have developed resistance to spinosad products and repeated use of these products during the growing season could result in reduced levels of control.
Cherry late spring and summer
Peachtree borer
ProductRecommendationREIPHIMOA
Peach Tree Borer pheromone (Isomate-P) 6530per acre: See labelnone listednone listed
Cherry preharvest and harvest
Brown rot (fruit rot)
ProductRecommendationREIPHIMOA
sulfur, dry flowable 694per acre: See label24 hnone listedM2
pyraclostrobin+boscalid (Pristine) 699per acre: 10.5-14.5 oz12 h0 d11,7
tebuconazole+trifloxystrobin (Adament 50WG) 6408per acre: 4-8 oz12h1d3, 11
metconazole (Quash 50WDG) 6449per acre: 2.5-3.5 oz12h14d3
penthiopyrad (Fontelis) 6609per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6610per acre: 12-14 fl oz12h0d11, 3
Comments
sulfur, dry flowable: Apply 20 and 10 days before harvest, and at picking time. See text—Potential Fruit & Leaf Injury. See General Recommendations.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
Cherry preharvest and harvest
Powdery mildew
ProductRecommendationREIPHIMOA
myclobutanil (Rally 40WSP) 702per acre: 5 oz24 h0 d3
sulfur, dry flowable 704per acre: See label24 hnone listedM2
azoxystrobin (Abound 2.08F) 706per acre: 11-15 fl oz4 h0 d11
potassium bicarbonate (Kaligreen) 709per acre: See label4 h1 dNC
pyraclostrobin+boscalid (Pristine) 711per acre: 10.5-14.5 oz12 h0 d11,7
quinoxyfen (Quintec 2.08L) 712per acre: 7 fl oz12 h7 d13
tebuconazole+trifloxystrobin (Adament 50WG) 6398per acre: 8 oz12h1d3, 11
metconazole (Quash 50WDG) 6450per acre: 3.5-4 oz12h14d3
penthiopyrad (Fontelis) 6506per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6555per acre: 12-14 fl oz12h0d11, 3
cyprodinil+difenoconazole (Inspire Super) 6802per acre: 20 See label12h2d9,3
Comments
azoxystrobin: Azoxystrobin is extremely toxic to certain apple varieties.  See label for further information.
sulfur, dry flowable: Apply 20 and 10 days before harvest, and at picking time. See text—Potential Fruit & Leaf Injury. See General Recommendations.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.  See label for further information.
myclobutanil: Place into solution before adding oil. See remarks in shuck fall section.
Cherry preharvest and harvest
Western cherry fruit fly
ProductRecommendationREIPHIMOA
malathion (Malathion ULV ) 713per acre: 16 fl oz12 h1 d1B
carbaryl (Sevin 4F) 714per acre: 4 pt12 h3 d1A
spinosad (Success 2F) 715per acre: 4-6 fl oz4 h7 d5
spinosad (Entrust 80W) 716per acre: 1.25-1.88 oz4 h7 d5
spinosad (GF-120 0.02% Bait) 717per acre: 20 fl oz4 h0 d5
spinetoram (Delegate 25WG) 6211per acre: 4-4.5 oz4 h7 d5
Comments
Western cherry fruit fly: Begin protective sprays within five days of first emergence of adults is indicated by the CFF model in your region.  This is usually about four weeks before harvest of Bing Cherry, or when the cherries reach late "straw" color.  Continue to cover spray about every 7 to 10 days, depending upon whether the product applied has a contact or a contact/residual effect.  Since the introduction of spotted wing drosophila, more attention must be concentrated on this pest, and all sprays that appear to be effective on SWD appear to be very effective on CCF.  Sprays must be applied every week, or even more frequently, for SWD. Some products that were very effective for control of CFF do not effectively control SWD.  So, the SWD control program should take presedence over CFF control. 
spinosad: Entrust is a spinosad formulation registered for organic production
spinosad: a spinosad formulation registered specifically for management of Tephritid fruit flies. This product has not proven sufficiently effective for the control of spotted wing drosophila. Monitor carefully for SWD if you use this bait. Apply to alternate rows with special auxiliary applicator; dilute with no more than 3 quarts of water per acre. Re-apply after rain. For application method, see label and web site http://county.wsu.edu/chelan-douglas/agriculture/treefruit/Pages/Cherry_Fly_Bait.aspx.
malathion: Apply malathion by air only, ULV, not mixed with water. See text--Aerial Application.
carbaryl: Carbaryl may cause mite flare-ups, especially with multiple applications.
Cherry postharvest
Pandemis leafroller, obliquebanded leafroller
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 719per acre: See label4 h0 d11B2
Comments
Bacillus thuringiensis subsp. kurstaki: Bts are stomach poisons so complete coverage is very important for control. Two or three applications are usually required.
Cherry postharvest
Powdery mildew
ProductRecommendationREIPHIMOA
lime sulfur/calcium polysulfide 721per acre: See label48 hnone listed
Comments
Powdery mildew: Apply to reduce next season's powdery mildew potential. Apply within 30 days after harvest. Optimum timing is 7 to 10 days after harvest. Full wetting of the foliage is required.
Cherry postharvest
Shothole borer
ProductRecommendationREIPHIMOA
esfenvalerate (Asana XL) 6529per acre: 14.5 fl oz12 h14 d3A
Comments
Shothole borer: Good sanitation (removing previous season's large wood pruning and wood piles from the orchard or near-by) is the best management tactic. Insecticides are only effective against adults. The second generation flight begins in late July or early August. Yellow sticky traps placed on orchard borders will detect activity of the adult beetles. Spraying the border trees (rows) with recommended products in high water volumes will protect the remainder of the orchard in many situations where external sources are the primary problem.
Cherry postharvest
Spider mites
ProductRecommendationREIPHIMOA
fenbutatin oxide (Vendex 50WP) 723per acre: 1-2 lb48 h14 d12B
propargite (Omite 30WS) 724per acre: 6 lb2 dnone listed12C
Cherry fall
Coryneum blight, bacterial gummosis
ProductRecommendationREIPHIMOA
copper hydroxide (Kocide 3000) 728per acre: See label48 h0 dM1
fixed copper (Basic Copper 53) 729per acre: See label24 h0 dM1
Comments
Coryneum blight, bacterial gummosis: Rates vary according to manufacturer. Optimum timing for control of bacterial gummosis is in the late winter and spring.
Stone fruit dormant
Coryneum blight (shothole)
ProductRecommendationREIPHIMOA
fixed copper (Basic Copper 53) 2279per acre: See label24 h0 dM1
copper hydroxide (Kocide 3000) 2281per acre: See label48 h0 dM1
ziram (Ziram Granuflo 76WDG) 2282per acre: 6-8 lb48 h30 dM3
Stone fruit dormant
Peach leaf curl
ProductRecommendationREIPHIMOA
fixed copper (Basic Copper 53) 2283per acre: 20 lb24 h0 dM1
thiram (Thiram Granuflo 75WDG) 2285per acre: 3.9-5.1 lb24 h7 dM3
ziram (Ziram 76DF) 2286per acre: See label48 h30 dM3
Stone fruit delayed dormant
European red mite (overwintering eggs)
ProductRecommendationREIPHIMOA
petroleum oil- dormant 2292per acre: 1-1.25 % v/v12 hnone listed
Comments
petroleum oil- dormant: Oil is indispensible for an integrated mite control program. Avoid spraying oil during cool (lower than 45°F), damp, or windy weather. Adequate agitation is required. Do not use over 5 gallons of oil per acre on mature trees.
Stone fruit delayed dormant
Green peach aphid
ProductRecommendationREIPHIMOA
esfenvalerate (Asana XL) 2293per acre: 6-8 fl oz12 h14 d3A
petroleum oil- dormant 2293per acre: 1-1.25 % v/v12 hnone listed
petroleum oil- dormant 2294per acre: 1-1.25 % v/v12 hnone listed
Comments
Green peach aphid: Control is only necessary on peach/nectarine. Delaying green peach aphid sprays past stage 2 will reduce effectiveness of recommended materials.
esfenvalerate: Asana may cause increased mite problems, especially when used after delayed dormant
petroleum oil- dormant: Oil is indispensible for an integrated mite control program. Avoid spraying oil during cool (lower than 45°F), damp, or windy weather. Adequate agitation is required. Do not use over 5 gallons of oil per acre on mature trees.
Stone fruit delayed dormant
San Jose scale, lecanium scale
ProductRecommendationREIPHIMOA
petroleum oil- dormant 2295per acre: 1-1.25 % v/v12 hnone listed
pyriproxyfen (Esteem 35WP) 2295per acre: 4-5 oz12 h14 d7C
chlorpyrifos (Lorsban Advanced) 2296per acre: 4 pt4 dNL1B
petroleum oil- dormant 2296per acre: 1-1.25 % v/v12 hnone listed
petroleum oil- dormant 2297per acre: 8 gal12 hnone listed
petroleum oil- dormant 2298per acre: 1-1.25 % v/v12 hnone listed
methidathion (Supracide 2E) 2298per acre: 8 pt3 dnone listed1B
Comments
San Jose scale, lecanium scale: oil plus an organophosphate is preferred because of improved scale control, and control of other pests.
petroleum oil- dormant: Oil is indispensible for an integrated mite control program. Avoid spraying oil during cool (lower than 45°F), damp, or windy weather. Adequate agitation is required. Do not use over 5 gallons of oil per acre on mature trees.
Stone fruit prebloom
Brown rot (blossom blight)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2299per acre: 12-15.5 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2300per acre: 4-8 oz12h1d3, 11
pyraclostrobin+boscalid (Pristine) 2301per acre: 10.5-14.5 oz12 h0 d11,7
metconazole (Quash 50WDG) 2302per acre: 2.5-4 oz12h14d3
myclobutanil (Rally 40WSP) 2303per acre: 5 oz24 h0 d3
azoxystrobin+difenoconazole (Quadris Top) 6556per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6567per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
Stone fruit prebloom
Coryneum blight (shothole)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2305per acre: 11-15 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2306per acre: 4-8 oz12h1d3, 11
captan (Captan 50WP) 2308per acre: See label24 h0 dM4
pyraclostrobin+boscalid (Pristine) 2309per acre: 10.5-14.5 oz12 h0 d11,7
myclobutanil (Rally 40WSP) 2310per acre: 5 oz24 h0 d3
penthiopyrad (Fontelis) 6611per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6613per acre: 12-14 fl oz12h0d11, 3
Comments
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
Stone fruit prebloom
Grape mealybug, mealy plum aphid, leaf curl plum aphid
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 2315per acre: 4 lb4 d21 d1B
Stone fruit prebloom
Lecanium scale
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 2318per acre: 4 lb4 d21 d1B
pyriproxyfen (Esteem 35WP) 2319per acre: 4-5 oz12 h14 d7C
Stone fruit prebloom
Oriental fruit moth
ProductRecommendationREIPHIMOA
OFM pheromone dispensers 2322per acre: See labelnone listednone listed
Stone fruit prebloom
Pandemis leafroller, obliquebanded leafroller
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2323per acre: 3-4.5 oz4 h10 d28
spinetoram (Delegate 25WG) 2324per acre: 4.5-7 oz4 h7 d5
Bacillus thuringiensis subsp. kurstaki 2325per acre: See label4 h0 d11B2
spinosad (Entrust 80W) 2326per acre: 2.5 oz4 h7 d5
spinosad (Success 2F) 2327per acre: 4-8 fl oz4 h7 d5
Comments
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum. Entrust is a spinosad formulation registered for organic production
spinosad: Some leafroller populations have developed resistance to spinosad products and repeated use of these products during the growing season could result in reduced levels of control.
Stone fruit prebloom
Peach silver mite
ProductRecommendationREIPHIMOA
propargite (Omite 30WS) 2328per acre: 5 lb5 d14 d12C
Stone fruit prebloom
Peach twig borer
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2330per acre: 3-4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 2331per acre: 3-4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 2332per acre: 3-7 oz4 h1 d5
Bacillus thuringiensis subsp. kurstaki 2333per acre: See label4 h0 d11B2
spinosad (Entrust 80W) 2334per acre: 2.5 oz4 h1 d5
spinosad (Success 2F) 2335per acre: 4-8 fl oz4 h1 d5
Comments
Belt, Altacor: these pesticides are in the same chemical class and are very effective on peach twig borer larvae.
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum. Entrust is a spinosad formulation registered for organic production
spinosad: Some leafroller populations have developed resistance to spinosad products and repeated use of these products during the growing season could result in reduced levels of control.
Stone fruit bloom
Brown rot (blossom blight)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2340per acre: 12-15.5 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2341per acre: 4-8 oz12h1d3, 11
captan (Captan 50WP) 2342per acre: See label24 h0 dM4
sulfur, dry flowable 2344per acre: See label24 hnone listedM2
pyraclostrobin+boscalid (Pristine) 2346per acre: 10.5-14.5 oz12 h0 d11,7
metconazole (Quash 50WDG) 2348per acre: 2.5-4 oz12h14d3
iprodione (Rovral 4F) 2349per acre: 1-2 pt24 hnone listed2
thiram (Thiram Granuflo 75WDG) 2350per acre: 3.9-5.1 lb24 h7 dM3
azoxystrobin+difenoconazole (Quadris Top) 6557per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6568per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
iprodione: apply at 5% bloom. Apply again at full bloom or petal fall if disease-conducive weather occurs.
thiram: Apply at 3-4 day interval during bloom. See label for fruit rot management recommendations. Not for use on nectarines.
Stone fruit bloom
Leafrollers
ProductRecommendationREIPHIMOA
Bacillus thuringiensis subsp. kurstaki 2352per acre: See label4 h0 d11B2
Comments
Bacillus thuringiensis subsp. kurstaki: use when predicted high temperatures are >65 degrees for 3+ days. Bt has a short residual activity, and may require 2-3 applications per generation.
Stone fruit petal fall
Brown rot (blossom blight)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2353per acre: 12-15.5 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2354per acre: 4-8 oz12h1d3, 11
captan (Captan 50WP) 2355per acre: See label24 h0 dM4
sulfur, dry flowable 2357per acre: See label24 hnone listedM2
pyraclostrobin+boscalid (Pristine) 2359per acre: 10.5-14.5 oz12 h0 d11,7
metconazole (Quash 50WDG) 2360per acre: 2.5-4 oz12h14d3
myclobutanil (Rally 40WSP) 2361per acre: 5 oz24 h0 d3
iprodione (Rovral 4F) 2362per acre: 1-2 pt24 hnone listed2
azoxystrobin+difenoconazole (Quadris Top) 6558per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6569per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
myclobutanil: See label for specific use recommendations. Place into solution before adding oil.
Stone fruit petal fall
Coryneum blight (shothole)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2364per acre: 11-15 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2365per acre: 4-8 oz12h1d3, 11
pyraclostrobin+boscalid (Pristine) 2367per acre: 10.5-14.5 oz12 h0 d11,7
penthiopyrad (Fontelis) 6614per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6615per acre: 12-14 fl oz12h0d11, 3
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
Stone fruit petal fall
Grape mealybug, mealy plum aphid, leaf curl plum aphid
ProductRecommendationREIPHIMOA
acetamiprid (Assail 30SG) 2368per acre: 8 oz12 h7 d4A
diazinon (Diazinon 50W) 2369per acre: 4 lb4 d21 d1B
Stone fruit petal fall
Green peach aphid
ProductRecommendationREIPHIMOA
acetamiprid (Assail 30SG) 2373per acre: 8 oz12 h7 d4A
Stone fruit petal fall
Oriental fruit moth
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2384per acre: 4.5 oz4 h10 d28
acetamiprid (Assail 30SG) 2385per acre: 8 oz12 h7 d4A
flubendiamide (Belt 4SC) 2386per acre: 3-4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 2387per acre: 4.5-7 oz4 h1 d5
spinosad (Entrust 80W) 2388per acre: 2.5 oz4 h1 d5
spinosad (Success 2F) 2390per acre: 4-8 fl oz4 h1 d5
Comments
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum.
spinosad: Entrust is a spinosad formulation registered for organic production.
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.
Stone fruit petal fall
Pandemis leafroller, obliquebanded leafroller
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2391per acre: 3-4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 2392per acre: 3-4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 2393per acre: 4.5-7 oz4 h7 d5
Bacillus thuringiensis subsp. kurstaki 2394per acre: See label4 h0 d11B2
spinosad (Entrust 80W) 2395per acre: 2.5 oz4 h7 d5
methoxyfenozide (Intrepid 2F) 2396per acre: 8-16 fl oz4 h7 d18A
spinosad (Success 2F) 2397per acre: 4-8 fl oz4 h7 d5
Comments
Pandemis leafroller, obliquebanded leafroller: If treatments for leafrollers were applied prior to this timing, sampling to determine the density of surviving leafrollers should be completed prior to deciding to apply additional controls.  

Most products listed act primarily as stomach poisons verses direct contact to residues, therefore, complete coverage is very important to achieve maximal control. Repeating an application of any product should be based on the leafroller population surviving previous treatments.  

Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing.  Follow sound resistance management practices to avoid the overuse of the same class of pesticide against consecutive leafroller generations.  
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum.
Bacillus thuringiensis subsp. kurstaki: use when predicted high temperatures are >65 degrees for 3+ days. Bt has a short residual activity, and may require 2-3 applications per generation.
spinosad: Entrust is a spinosad formulation registered for organic production.
Intrepid, Success: Some leafroller populations have developed resistance to these materials, so their use may result in reduced control.
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.

Stone fruit petal fall
Peach twig borer
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2398per acre: 3-4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 2399per acre: 3-4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 2400per acre: 7 oz4 h14 d5
Bacillus thuringiensis subsp. kurstaki 2401per acre: See label4 h0 d11B2
spinosad (Entrust 80W) 2402per acre: 2.5 oz4 h1 d5
spinosad (Success 2F) 2404per acre: 4-8 fl oz4 h1 d5
Comments
Peach twig borer: use the phenology model (http://das.wsu.edu) to time insecticides.
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum.
Bacillus thuringiensis subsp. kurstaki: use when predicted high temperatures are >65 degrees for 3+ days. Bt has a short residual activity, and may require 2-3 applications per generation.
spinosad: Entrust is a spinosad formulation registered for organic production.
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.
Stone fruit petal fall
Powdery mildew (Perfection spot)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2407per acre: 11-15 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2408per acre: 4-8 oz12h1d3, 11
sulfur, dry flowable 2409per acre: See label24 hnone listedM2
metconazole (Quash 50WDG) 2411per acre: 2.5-3.5 oz12h14d3
myclobutanil (Rally 40WSP) 2412per acre: 5 oz24 h0 d3
azoxystrobin+difenoconazole (Quadris Top) 6559per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6570per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
myclobutanil: See label for specific use recommendations. Place into solution before adding oil.
Stone fruit petal fall
Western flower thrips
ProductRecommendationREIPHIMOA
spinetoram (Delegate 25WG) 2415per acre: 7 oz4 h1 d5
spinosad (Entrust 80W) 2416per acre: 2.5 oz4 h1 d5
spinosad (Success 2F) 2417per acre: 4-8 fl oz4 h1 d5
Comments
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum.
spinosad: Entrust is a spinosad formulation registered for organic production.
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.
Stone fruit shuck fall
Brown rot
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2419per acre: 12-15.5 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2420per acre: 4-8 oz12h1d3, 11
captan (Captan 50WP) 2421per acre: See label24 h0 dM4
sulfur, dry flowable 2422per acre: See label24 hnone listedM2
pyraclostrobin+boscalid (Pristine) 2423per acre: 10.5-14.5 oz12 h0 d11,7
metconazole (Quash 50WDG) 2425per acre: 2.5-4 oz12h14d3
azoxystrobin+difenoconazole (Quadris Top) 6560per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6571per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
Stone fruit shuck fall
Coryneum blight (shothole)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2427per acre: 11-15 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2428per acre: 4-8 oz12h1d3, 11
captan (Captan 50WP) 2429per acre: See label24 h0 dM4
pyraclostrobin+boscalid (Pristine) 2430per acre: 10.5-14.5 oz12 h0 d11,7
ziram (Ziram Granuflo 76WDG) 2431per acre: 6 lb48 h30 dM3
penthiopyrad (Fontelis) 6616per acre: 14-20 fl oz12h0d7
azoxystrobin+difenoconazole (Quadris Top) 6617per acre: 12-14 fl oz12h0d11, 3
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
Stone fruit shuck fall
Leafrollers
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2432per acre: 3-4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 2433per acre: 3-4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 2434per acre: 4.5-7 oz4 h14 d5
Bacillus thuringiensis subsp. kurstaki 2435per acre: See label4 h0 d11B2
spinosad (Entrust 80W) 2436per acre: 2.5 oz4 h1 d5
methoxyfenozide (Intrepid 2F) 2437per acre: 8-16 fl oz4 h7 d18A
spinosad (Success 2F) 2438per acre: 4-8 fl oz4 h1 d5
Comments
Leafrollers: If treatments for leafrollers were applied prior to this timing, sampling to determine the density of surviving leafrollers should be completed prior to deciding to apply additional controls.  

Most products listed act primarily as stomach poisons verses direct contact to residues, therefore, complete coverage is very important to achieve maximal control. Repeating an application of any product should be based on the leafroller population surviving previous treatments.  

Use the leafroller models on the WSU Decision Aid System (das.wsu.edu) for the optimum timing.  Follow sound resistance management practices to avoid the overuse of the same class of pesticide against consecutive leafroller generations.  
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum.
Bacillus thuringiensis subsp. kurstaki: use when predicted high temperatures are >65 degrees for 3+ days. Bt has a short residual activity, and may require 2-3 applications per generation.
spinosad: Entrust is a spinosad formulation registered for organic production.
Intrepid, Success: Some leafroller populations have developed resistance to these materials, so their use may result in reduced control.
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.

Stone fruit shuck fall
Powdery mildew (Perfection spot)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2439per acre: 11-15 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2440per acre: 4-8 oz12h1d3, 11
sulfur, dry flowable 2441per acre: See label24 hnone listedM2
metconazole (Quash 50WDG) 2443per acre: 2.5-3.5 oz12h14d3
myclobutanil (Rally 40WSP) 2444per acre: 5 oz24 h0 d3
lime sulfur/calcium polysulfide 2446per acre: See label48 hnone listed
azoxystrobin+difenoconazole (Quadris Top) 6561per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6572per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
myclobutanil: See label for specific use recommendations. Place into solution before adding oil.
Stone fruit summer
Brown rot (fruit rot)
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2448per acre: 12-15.5 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2449per acre: 4-8 oz12h1d3, 11
captan (Captan 50WP) 2450per acre: See label24 h0 dM4
sulfur, dry flowable 2452per acre: See label24 hnone listedM2
pyraclostrobin+boscalid (Pristine) 2454per acre: 10.5-14.5 oz12 h0 d11,7
metconazole (Quash 50WDG) 2455per acre: 2.5-4 oz12h14d3
thiram (Thiram Granuflo 75WDG) 2456per acre: 3.9-5.1 lb24 h7 dM3
azoxystrobin+difenoconazole (Quadris Top) 6562per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6573per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
sulfur, dry flowable: Apply 2-3 weeks after shuck fall.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
thiram: Not for use on nectarines.
Stone fruit summer
Earwigs
ProductRecommendationREIPHIMOA
carbaryl (Sevin 4F) 2459per acre: 2-3 qt12 h3 d1A
Comments
Earwigs: apply pesticides to the trunk and base of tree.
carbaryl: do not apply on blooming cover crops because of hazard to bees.
Stone fruit summer
Grape mealybug
ProductRecommendationREIPHIMOA
acetamiprid (Assail 30SG) 2461per acre: 8 oz12 h7 d4A
Stone fruit summer
Grasshoppers, Mormon crickets
ProductRecommendationREIPHIMOA
carbaryl (Sevin 4F) 2464per acre: 2-3 qt12 h3 d1A
Comments
Grasshoppers, Mormon crickets: See Special Programs (http://jenny.tfrec.wsu.edu/eb0419/web/Special_Programs)
carbaryl: do not apply on blooming cover crops because of hazard to bees.
Stone fruit summer
Pandemis leafroller, obliquebanded leafroller
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2465per acre: 3-4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 2466per acre: 3-4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 2467per acre: 4.5-7 oz4 h1 d5
Bacillus thuringiensis subsp. kurstaki 2468per acre: See label4 h0 d11B2
spinosad (Entrust 80W) 2469per acre: 2.5 oz4 h1 d5
methoxyfenozide (Intrepid 2F) 2470per acre: 8-16 fl oz4 h7 d18A
spinosad (Success 2F) 2471per acre: 4-8 fl oz4 h1 d5
Comments
Leafrollers, Oriental fruit moth: to minimize the development of resistance to any unique class of insecticide products in the class should not be used against consecutive generations. Examples of pesticides in the same class are Delegate, Success, and Entrust (spinosyns, Group 5) and Belt and Altacor (diamides, Group 28). A sound resistance management program therefore requires the use of different classes of insecticide against consecutive generations.
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.
Bacillus thuringiensis subsp. kurstaki: apply when warm weather is predicted for 3 or more days. Two or three applications per pest generation may be required to achieve adequate control.
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum. Entrust is a spinosad formulation registered for organic production
methoxyfenozide: Some leafroller populations have developed resistance to methoxyfenozide so continued use may result in reduced control.
spinosad: Some leafroller populations have developed resistance to spinosad products and repeated use of these products during the growing season could result in reduced levels of control.
Stone fruit summer
McDaniel spider mite, twospotted spider mite, European red mite
ProductRecommendationREIPHIMOA
bifenazate (Acramite 50WS) 2472per acre: 0.75-1 lb12 h3 dun
clofentezine (Apollo 4SC) 2473per acre: 4-8 fl oz12 h21 d10A
spirodiclofen (Envidor 2SC) 2474per acre: 18 fl oz12 h7 d23
propargite (Omite 30WS) 2475per acre: 5-6 lb5 d14 d12C
hexythiazox (Savey 50DF) 2476per acre: 3-6 oz12 h28 d10A
fenbutatin oxide (Vendex 50WP) 2477per acre: 1-2 lb48 h14 d12B
Comments
Apollo, Savey: these products are mostly effective on the egg stage, does not control adult spider mites.
propargite: nectarine ONLY. Use higher rate on European red mite
Stone fruit summer
Oriental fruit moth
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2478per acre: 4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 2479per acre: 3-4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 2480per acre: 7 oz4 h14 d5
spinosad (Entrust 80W) 2481per acre: 2.5 oz4 h1 d5
spinosad (Success 2F) 2483per acre: 4-8 fl oz4 h1 d5
methoxyfenozide (Intrepid 2F) 6632per acre: 10-16 fl oz4 h7 d18A
Comments
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum. Entrust is a spinosad formulation registered for organic production
methoxyfenozide: Some leafroller populations have developed resistance to methoxyfenozide so continued use may result in reduced control.
spinosad: Some leafroller populations have developed resistance to spinosad products and repeated use of these products during the growing season could result in reduced levels of control.
Stone fruit summer
Peach silver mite
ProductRecommendationREIPHIMOA
sulfur, dry flowable 2490per acre: See label24 hnone listedM2
propargite (Omite 30WS) 2491per acre: 5 lb5 d14 d12C
Comments
sulfur, dry flowable: Apply 2-3 weeks after shuck fall.
propargite: nectarine ONLY. Use higher rate on European red mite
Stone fruit summer
Peach twig borer
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2493per acre: 3-4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 2494per acre: 4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 2495per acre: 4.5-7 oz4 h14 d5
spinosad (Entrust 80W) 2496per acre: 2.5 oz4 h1 d5
spinosad (Success 2F) 2498per acre: 4-8 fl oz4 h1 d5
methoxyfenozide (Intrepid 2F) 6633per acre: 8-16 fl oz4 h7 d18A
Comments
Peach twig borer: use the phenology model (available at http://das.wsu.edu) for optimum timing of sprays.
Delegate, Success, Entrust and Bt: primarily or exclusively stomach poisons so complete coverage is very important for efficacy. Repeat applications of any product should be based on pest pressure and the efficacy of the initial treatments based on sampling.
Delegate, Entrust, Success: PHI is 14 d on apricot, 1 d for peach and nectarine, and 7 d on plum. Entrust is a spinosad formulation registered for organic production
methoxyfenozide: Some leafroller populations have developed resistance to methoxyfenozide so continued use may result in reduced control.
spinosad: Some leafroller populations have developed resistance to spinosad products and repeated use of these products during the growing season could result in reduced levels of control.
Stone fruit summer
Peachtree borer
ProductRecommendationREIPHIMOA
Peach Tree Borer pheromone 2500per acre: See labelnone listednone listed
Comments
Peachtree borer: apply pesticides as a trunk spray, using a handgun directed at the trunk and soil at the base of the trees.
Peach Tree Borer pheromone: Peachtree borer pheromone, apply dispensers in late June or when the first moths are caught in pheromone traps. Place dispensers in upper half of canopy.
Stone fruit summer
Plum rust mite
ProductRecommendationREIPHIMOA
sulfur, dry flowable 2505per acre: See label24 hnone listedM2
Comments
sulfur, dry flowable: Apply 2-3 weeks after shuck fall.
Stone fruit summer
Powdery mildew
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2507per acre: 11-15 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2508per acre: 4-8 oz12h1d3, 11
sulfur, dry flowable 2509per acre: See label24 hnone listedM2
metconazole (Quash 50WDG) 2511per acre: 2.5-3.5 oz12h14d3
myclobutanil (Rally 40WSP) 2512per acre: 5 oz24 h0 d3
lime sulfur/calcium polysulfide 2514per acre: See label48 hnone listed
azoxystrobin+difenoconazole (Quadris Top) 6563per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6574per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
sulfur, dry flowable: Apply 2-3 weeks after shuck fall.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
lime sulfur/calcium polysulfide: Do not apply at temperature above 84 F. Allow 30 days to elapse between lime-sulfur and oil sprays.
Stone fruit summer
San Jose scale
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 2516per acre: 4 lb4 d21 d1B
Stone fruit summer
Shothole borer
ProductRecommendationREIPHIMOA
esfenvalerate (Asana XL) 6518per acre: 14.5 fl oz12 h14 d3A
acetamiprid (Assail 30SG) 6519per acre: 8 oz12 h7 d4A
Comments
Shothole borer: Good sanitation (removing large wood pruning and wood piles from the orchard) is the best management tactic. Insecticides are only effective against adults. The second generation flight begins in late July or early August. Yellow sticky traps placed on orchard borders will detect activity of the adult beetles. Spraying the border trees (rows) with high water volumes will protect the remainder of the orchard in many situations where external sources are the primary problem.
Stone fruit summer
White apple leafhopper
ProductRecommendationREIPHIMOA
carbaryl (Sevin XLR Plus) 2519per acre: 2-3 pt12 h3 d1A
Stone fruit preharvest and harvest
Brown rot
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2521per acre: 12-15.5 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2522per acre: 4-8 oz12h1d3, 11
captan (Captan 50WP) 2523per acre: See label24 h0 dM4
sulfur, dry flowable 2525per acre: See label24 hnone listedM2
pyraclostrobin+boscalid (Pristine) 2527per acre: 10.5-14.5 oz12 h0 d11,7
metconazole (Quash 50WDG) 2528per acre: 2.5-4 oz12h14d3
thiram (Thiram Granuflo 75WDG) 2529per acre: 3.9-5.1 lb24 h7 dM3
azoxystrobin+difenoconazole (Quadris Top) 6564per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6575per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
thiram: Not for use on nectarines.
Stone fruit preharvest and harvest
Oriental fruit moth, peach twig borer
ProductRecommendationREIPHIMOA
chlorantraniliprole (Altacor 35WDG) 2531per acre: 3-4.5 oz4 h10 d28
flubendiamide (Belt 4SC) 2532per acre: 3-4 fl oz12 h7 d28
spinetoram (Delegate 25WG) 2533per acre: 4.5-7 oz4 h1 d5
spinosad (Entrust 80W) 2534per acre: 2.5 oz4 h1 d5
carbaryl (Sevin 4F) 2535per acre: 2-4 qt12 h3 d1A
spinosad (Success 2F) 2537per acre: 4-8 fl oz4 h1 d5
Comments
spinosad: Entrust is a spinosad formulation registered for organic production
Stone fruit preharvest and harvest
Powdery mildew
ProductRecommendationREIPHIMOA
azoxystrobin (Abound 2.08F) 2538per acre: 11-15 fl oz4 h0 d11
tebuconazole+trifloxystrobin (Adament 50WG) 2539per acre: 4-8 oz12h1d3, 11
lime sulfur/calcium polysulfide 2541per acre: See label48 hnone listed
azoxystrobin+difenoconazole (Quadris Top) 6566per acre: 12-14 fl oz12h0d11, 3
penthiopyrad (Fontelis) 6576per acre: 14-20 fl oz12h0d7
Comments
azoxystrobin: this material is extremely phytotoxic to certain apple varieties. See Application Directions, Resistance Management, and Attention information on label.
azoxystrobin+difenoconazole: The azoxystrobin component of Quadris Top is extremely toxic to certain apple varieties.
Stone fruit postharvest
Peach leaf curl, bacterial gummosis, coryneum blight
ProductRecommendationREIPHIMOA
fixed copper (Basic Copper 53) 2542per acre: See label24 h0 dM1
captan (Captan 50WP) 2544per acre: See label24 h0 dM4
copper hydroxide (Kocide 3000) 2545per acre: See label48 h0 dM1
ziram (Ziram Granuflo 76WDG) 2546per acre: 6 lb48 h30 dM3
Comments
Peach leaf curl, bacterial gummosis, coryneum blight: apply most materials before autumn rains or after October 1.
fixed copper: rates vary according to manufacturer. Do not use copper materials before October 1, or before leaf drop.
Stone fruit postharvest
Peach silver mite
ProductRecommendationREIPHIMOA
sulfur, dry flowable 2547per acre: See label24 hnone listedM2
propargite (Omite 30WS) 2548per acre: 5 lb5 d14 d12C
Comments
propargite: for use on nectarines only.
Stone fruit postharvest
Plum aphids
ProductRecommendationREIPHIMOA
diazinon (Diazinon 50W) 2549per acre: 4 lb4 d21 d1B
Comments
Plum aphids: many aphid species that attack stone fruits return from summer hosts in the fall to lay overwintering eggs. Fall-applied aphicides may prevent egg-laying, and thus next year’s spring population.
Stone fruit postharvest
Shothole borer
ProductRecommendationREIPHIMOA
esfenvalerate (Asana XL) 6515per acre: 14.5 fl oz12 h14 d3A
acetamiprid (Assail 30SG) 6516per acre: 8 oz12 h7 d4A
Comments
Shothole borer: Good sanitation (removing large wood pruning and wood piles from the orchard) is the best management tactic. Insecticides are only effective against adults. The second generation flight begins in late July or early August. Yellow sticky traps placed on orchard borders will detect activity of the adult beetles. Spraying the border trees (rows) with high water volumes will protect the remainder of the orchard in many situations where external sources are the primary problem.
Stone fruit postharvest
Spider mites
ProductRecommendationREIPHIMOA
propargite (Omite 30WS) 2553per acre: 5 lb5 d14 d12C
fenbutatin oxide (Vendex 50WP) 2554per acre: 1-2 lb48 h14 d12B
Comments
propargite: for use on nectarines only.
Pome fruit seasonal
Grass and/or broadleaf weeds
ProductRecommendationREIPHIMOA
oryzalin (Surflan AS) 2per acre: 2-6 qt
ai / acre: 2-6 qt
24 hnone listed3
dichlobenil (Casoron 4G) 4per acre: 150 lb
ai / acre: 150 lb
12 hnone listed20
simazine (Princep 4L) 7per acre: 1.6-3.2 qt
ai / acre: 1.6-3.2 qt
12 h150 d5
terbacil (Sinbar ) 9per acre: 2 lb
ai / acre: 2 lb
12 h60 d5
norflurazon (Solicam 78.6DF) 10per acre: 2.0-3.0 lb
ai / acre: 2.0-3.0 lb
12 h60 d12
pronamide (Kerb 50W) 11per acre: 2-6 lb
ai / acre: 2-6 lb
24 hnone listed3
pendimethalin (Prowl H2O) 12per acre: 2-4 qt
ai / acre: 2-4 qt
24 h60 d3
oxyfluorfen (Goal 2XL) 13per acre: 2-6 pt
ai / acre: 2-6 pt
24 hnone listed14
oxyfluorfen (GoalTender ) 14per acre: 1-4 pt
ai / acre: 1-4 pt
24 hnone listed14
diuron (Karmex DF) 20per acre: 2-4 lb
ai / acre: 2-4 lb
12 hnone listed7
oryzalin (Surflan AS) 20per acre: 2-4 qt
ai / acre: 2-4 qt
24 hnone listed3
glyphosate (Roundup Original) 3812 h1 d9
simazine (Princep 4L) 38per acre: 1-3 lb
ai / acre: 1-3 lb
12 h150 d5
oryzalin (Surflan AS) 38per acre: 2-4 qt
ai / acre: 2-4 qt
24 hnone listed3
rimsulfuron (Matrix FNV) 6141per acre: 4 oz
ai / acre: 4 oz
4 h7 d2
simazine (Princep Caliber 90) 6285per acre: 2.0-3.6 lb
ai / acre: 2.0-3.6 lb
12 h150 d5
indaziflam (Alion 1.67) 6497per acre: 5.0-6.5 fl oz
ai / acre: 5.0-6.5 fl oz
12 h14 d29
indaziflam (Alion 1.67) 6634per acre: 4-5 fl oz
ai / acre: 4-5 fl oz
12 h14 d29
simazine (Simazine 4L) 6634per acre: 1.5-2.5 qt
ai / acre: 1.5-2.5 qt
12 h150 d5
glyphosate 6634per acre: 2 qt
ai / acre: 2 qt
4 h1 d9
indaziflam (Alion 1.67) 6635per acre: 4.0-5.0 fl oz
ai / acre: 4.0-5.0 fl oz
12 h14 d29
rimsulfuron (Matrix FNV) 6635per acre: 2-3 oz
ai / acre: 2-3 oz
4 h7 d2
glyphosate 6635per acre: 2 qt
ai / acre: 2 qt
4 h1 d9
penoxsulam+oxyfluorfen (Pindar GT (pome fruit)) 6665per acre: 3 pt
ai / acre: 3 pt
24 h60
pendimethalin (Prowl H2O) 6665per acre: 3 qt
ai / acre: 3 qt
24 h60 d3
Comments
indaziflam: Will not control established perennials or emerged annuals. Use as a mixture with appropriate systemic contact material. Apply to trees in their third leaf or older. Water is necessary for incorporation. Excessive crop residue or leaf litter may reduce effect. Spring application is more effective if glyphosate was used in the previous fall to control perennial weeds.  Addition of a low rate of simizine or Matrix will often greatly improve results. Use lower rates (4 -4.5 fl. oz./A) if used in previous 12 months.  Herbicide class 29, alkylazine, a celulose development inhibitor.
dichlobenil: Dichlobenil can be applied where weeds are present. More effective when applied in the fall when the soil is cool and still not frozen. If used under special conditions or applied in the spring, follow label directions closely.  Herbicide class 20, nitrile, a celulose inhibitor.
oxyfluorfen: Alternate trade name: Galigan 2E. Apply to trash-free soil as a directed spray towards the base of dormant trees to control susceptible broadleaf weeds. Rate depends on weed species to be controlled and whether applied preemergence or postemergence to the weeds. Apply only to healthy trees. Do not apply after tree buds start to swell or when foliage or fruits are present. Often tank-mixed with other materials to control annual grass weeds. Banded applications only.  Herbicide class 14, diphenylether, a PPO inhibitor.
oxyfluorfen: See comments for Goal 2XL.
pronamide: Pronamide should be applied in the fall after harvest, but before leaf drop and soil freeze up to trash-free soil. Use the lower rates for annual grasses and susceptible broadleaf weeds; use the higher rates for controlling quackgrass. Rainfall or overhead irrigation is required following application. Soil temperatures above 55°F may result in reduced weed control. It is most effective on cool season grasses. Do not apply around seedling trees less than 1 year old or fall-transplanted trees established less than 1 year or spring transplanted trees established less than 6 months.  Herbicide class 3, benzamide, microtubule assembly inhibition.
rimsulfuron: Apply preemergence or early postemergence to weeds. For maximum preemergence activity, prior to application, the soil surface should be smooth and relatively free of crop and weed trash. Controls several annuals grasses and broadleaf weeds. A repeat application may be made if banded over the tree row. Do not harvest fruit for 7 days. To broaden the weed control spectrum and/or extend the residual effectiveness rimsulfuron may be tank-mixed with other registered herbicides having a different mode of action.  Tank mixes well with Alion.  Herbicide class 2, sulfonylurea, ALS inhibitor.
simazine: see Simazine.
simazine: See comments for Simazine.
pendimethalin: Pendimethalin should be applied to weed-free soil. Delay application to newly planted trees until ground has settled and no cracks are present. Use lower rate for 4-month control and higher rate for 6–8 months control. Controls most germinating annual grasses and some annual broadleaf weeds.  Prowl is not effective preventing the emergence of some common weeds if used alone. Often used in combination with other residuals such as simizine or rimsulfuron. Treatments are most effective if rainfall or irrigation is received within 7 days after application.  Herbicide class 3, dinitroaniline, microtubule (root) inhibition.
pendimethalin: Pendimethalin should be applied to weed-free soil. Delay application to newly planted trees until ground has settled and no cracks are present. Use lower rate for 4-month control and higher rate for 6–8 months control. Controls most germinating annual grasses and some annual broadleaf weeds.  Prowl is not effective preventing the emergence of some common weeds if used alone. Often used in combination with other residuals such as simizine or rimsulfuron. Treatments are most effective if rainfall or irrigation is received within 7 days after application.  Herbicide class 3, dinitroaniline, microtubule (root) inhibition.
simazine: Simazine is the common name for the herbicide also sold under many trade names, such as Princep, Simazine and Sim-Trol.  There are variations in the percent active ingredient of the various registered products.  Pay close attention to the recommended rates in active ingredient per sprayed acre in these recommendations.  Simazine is not recommended for use in cherries or other stone fruits in Washington.
terbacil: Do not use terbacil on pears. Terbacil can be applied to weed-free soil or with paraquat or glyphosate when established weeds are present. More effective when applied in the fall, after November 1 and before ground is frozen. Use fall application in rill- or furrow-irrigated orchard. The diuron-terbacil combination can be used on apples at lower rates to reduce the hazard of injury. If leached into the root system of the tree, terbacil can cause serious tree injury. Do not use in orchards that have gravelly, sandy, or loamy sand soils and with less than 1% organic matter, particularly if sprinkler irrigation is used. Do not apply in apple orchards established less than 36 months. Limit initial sprinkler irrigation to 0.5 inch of water. Note label restrictions and follow label directions closely.  Herbicide class 5, uracil, photosynthesis inhibitor.
Solicam: Can be applied to apple at any time, but pears must be established at least 18 months. This product is very effective against annual grasses and some broadleaf weeds, but is not commonly used except as a partner with another product that controls the other weeds. Commonly paired with simazine or diuron. Make only one application per year, and reduce rates in 2nd or subsequent seasons, as this product is quite residual. May suppress, but not control Equisetum (field horsetail, scouring rush). Herbicide class 12, pyridazinone, inhibits carotenoids (leaf color).
oryzalin: Alternate trade name: Oryzalin 4AS. Apply oryzalin to weed-free soil or with paraquat, Rely, Venue or glyphosate when established weeds are present. One-half inch moisture (rain or sprinkler irrigation) needed to activate (after 12-24 hours delay to give the contact spray the opportunity to work.). Delay application to newly planted trees until ground has settled. Lower rate is for 4 month's control; higher rate for 8–12 months. Controls many annual grasses and broadleaf weeds but will not completely control some mustards, nightshades, or weeds in the sunflower family.  Herbicide class 3, dinitroanaline, inhibits microtubule development (roots). 
Pome fruit temporary
Broadleaf weeds
ProductRecommendationREIPHIMOA
2,4-D (Saber ) 40per acre: 3 pt
ai / acre: 3 pt
48 h14 d4
Comments
2, 4-D: Alternate trade names: Saber, Orchard Master, Weedar 64, Opti-Amine, Amine 4 2,4-D. Kills most annual and many perennial broadleaf weeds. Apply as directed spray on weeds to point of run-off. Avoid contact with tree foliage, limbs and trunk. Do not apply during windy periods. Can be absorbed by tree roots and cause serious injury if carried into the root zone by irrigation. Do not make more than two applications per season. Best results are obtained when applied within 2 days following an irrigation and the weeds are growing actively. In sprinkler-irrigated orchards, apply only after irrigation and never to dry or bare ground. The Gala, Fuji and Golden Delicious apple varieties appear to be more sensitive to root uptake of 2,4-D than other varieties. Reduce possible root uptake by applying 2,4-D at a time of season when frequent irrigation is not necessary. Do not apply to trees established in orchard less than 1 year. Do not apply during bloom.  Herbicide class 4, phenoxy-carbolic acid, a synthetic plant hormone.
Gramoxone Inteon + Saber: Use only 2,4-D labeled for use on apples and pears. Apply as a directed spray. The combination increases effectiveness over a broader spectrum of weeds. Observe all precautions for both products.
Pome fruit temporary
Grass and/or broadleaf weeds
ProductRecommendationREIPHIMOA
2,4-D (Saber ) 46per acre: 2 pt
ai / acre: 2 pt
48 h14 d4
paraquat (Gramoxone Inteon) 46per acre: 2.5-4.0 pt
ai / acre: 2.5-4.0 pt
24 hnone listed22
nonionic surfactant 46per acre: 1 pt/100 gal
ai / acre: 1 pt/100 gal
none listednone listed
glufosinate-ammonium (Rely 280) 47per acre: 1.28-2.56 qt
ai / acre: 1.28-2.56 qt
12 h14 d10
paraquat (Gramoxone Inteon) 6286per acre: 2.5-4 pt
ai / acre: 2.5-4 pt
24 hnone listed22
nonionic surfactant 6286none listednone listed
nonionic surfactant 6287per acre: 1 pt/ 100 gal
ai / acre: 1 pt/ 100 gal
none listednone listed
paraquat (Firestorm) 6287per acre: 1.7-2.7 pt
ai / acre: 1.7-2.7 pt
24 hnone listed22
nonionic surfactant 6288none listednone listed
paraquat (Firestorm) 6288per acre: 1.7-2.7 pt
ai / acre: 1.7-2.7 pt
24 hnone listed22
2,4-D (Weedar 64) 6288per acre: 1 qt
ai / acre: 1 qt
48 h14 d4
Comments
paraquat: Has the same active ingredient, but at a higher concentration than Gramoxone, so note the lower use rates.  For other details, see entry for Gramoxone Inteon.
paraquat: Apply as a directed spray. May be used at any time, but most effective when weeds are no more than 4–6 inches tall and growing actively. Keep off tree foliage, fruit, and green bark. Often tank-mixed with soil residual herbicides to control established weeds. Use this product only if you carefully read and follow PPE directions on the lable. Use a full face shield, gloves and apron when filling and mixing. Do not ingest or inhale spray mist when spraying.  Herbicide class 22, bipyridilium, disrupts photosynthesis.
2, 4-D: Alternate trade names: Saber, Orchard Master, Weedar 64, Opti-Amine, Amine 4 2,4-D. Kills most annual and many perennial broadleaf weeds. Apply as directed spray on weeds to point of run-off. Avoid contact with tree foliage, limbs and trunk. Do not apply during windy periods. Can be absorbed by tree roots and cause serious injury if carried into the root zone by irrigation. Do not make more than two applications per season. Best results are obtained when applied within 2 days following an irrigation and the weeds are growing actively. In sprinkler-irrigated orchards, apply only after irrigation and never to dry or bare ground. The Gala, Fuji and Golden Delicious apple varieties appear to be more sensitive to root uptake of 2,4-D than other varieties. Reduce possible root uptake by applying 2,4-D at a time of season when frequent irrigation is not necessary. Do not apply to trees established in orchard less than 1 year. Do not apply during bloom.  Herbicide class 4, phenoxy-carbolic acid, a synthetic plant hormone.
Gramoxone Inteon + Saber: Use only 2,4-D labeled for use on apples and pears. Apply as a directed spray. The combination increases effectiveness over a broader spectrum of weeds. Observe all precautions for both products.
Firestorm + 2, 4-D: See entry for Gramoxone Inteon with 2,4-D.
Stone fruit seasonal
Grass and/or broadleaf weeds
ProductRecommendationREIPHIMOA
oryzalin (Surflan AS) 49per acre: 2-6 qt24 hnone listed3
dichlobenil (Casoron 4G) 51per acre: 150 lb12 hnone listed20
norflurazon (Solicam 78.6DF) 53per acre: 2.5-5 lb12 h60 d12
pronamide (Kerb 50W) 54per acre: 2-6 lb24 hnone listed3
pendimethalin (Prowl H2O) 55per acre: 2-4 qt24 h60 d3
oxyfluorfen (Goal 2XL) 56per acre: 2-6 pt24 hnone listed14
oxyfluorfen (GoalTender ) 57per acre: 1-4 pt24 hnone listed14
rimsulfuron (Matrix FNV) 6143per acre: 4 oz4 h14 d2
indaziflam (Alion 1.67) 6496per acre: 5.0-6.5 fl oz12 h14 d29
glyphosate (Roundup Original) 6496per acre: 2-4 qt12 h17 d9
glyphosate (Roundup PowerMAX) 6636per acre: 2 qt4 h17 d9
indaziflam (Alion 1.67) 6636per acre: 4-5 fl oz12 h14 d29
rimsulfuron (Matrix FNV) 6636per acre: 2-3 oz4 h14 d2
Comments
indaziflam: Broad weed control spectrum premergence residual herbicide. Will not control established perennials or emerged annuals. Use as a mixture with appropriate systemic contact material. Apply to trees in their third leaf. Light irrigation or rain is necessary for incorporation. Excessive crop residue or leaf litter may reduce effect. Spring application is more effective if glyphosate was used in the previous fall or late summer to control perennial weeds.  Adding Matrix to the Alion will extend the period of control.   Herbicide class 29, alkylazine, disrupts celulose formation in the cell wall.
dichlobenil: Dichlobenil can be applied where weeds are present. More effective when applied in the fall when the soil is cool and still not frozen. If used under special conditions or applied in the spring, follow label directions closely.  Herbicide class 22, nitrile, disrupts cellulose development.
oxyfluorfen: Alternate trade name: Galigan 2E. Apply to trash-free soil as a directed spray towards the base of dormant trees to control susceptible broadleaf weeds. Rate depends on weed species to be controlled and whether applied preemergence or postemergence to the weeds. Apply only to healthy trees. Do not apply after tree buds start to swell or when foliage or fruits are present. Often tank-mixed with other materials to control grass weeds. Banded applications only. Herbicide class 14, diphenylether, PPO inhibitor.
oxyfluorfen: See comments for Goal 2XL.
pronamide: Apply pronamide in the fall after harvest, but before leaf drop and soil freeze up to trash-free soil. Use the lower rates for annual grasses and susceptible broadleaf weeds; use the higher rates for controlling quackgrass. Rainfall or overhead irrigation is required following application. Soil temperatures above 55°F may result in reduced weed control. It is most effective on cool season grasses. Do not apply around seedling trees less than 1 year old or fall transplanted trees established less than 1 year, or spring transplanted trees established less than 6 months. Herbicide class 3, benzamide, microtubule assembly inhibition.
rimsulfuron: Apply preemergence or early postemergence to weeds. For maximum preemergence activity, prior to application, the soil surface should be smooth and relatively free of crop and weed trash. Controls several annuals grasses and broadleaf weeds. A repeat application may be made if banded over the tree row. Do not harvest fruit for 14 days. To broaden the weed control spectrum and/or extend the residual effectiveness rimsulfuron may be tank-mixed with other registered herbicides having a different mode of action.  Herbicide class 2, sulfonylurea, ALS inhibition.
rimsulfuron: Apply preemergence or early postemergence to weeds. For maximum preemergence activity, prior to application, the soil surface should be smooth and relatively free of crop and weed trash. Controls several annuals grasses and broadleaf weeds. A repeat application may be made if banded over the tree row. Do not harvest fruit for 14 days. To broaden the weed control spectrum and/or extend the residual effectiveness rimsulfuron may be tank-mixed with other registered herbicides having a different mode of action.  Herbicide class 2, sulfonylurea, ALS inhibition.
pendimethalin: Pendimethalin should be applied to weed-free soil. Delay application to newly planted trees until ground has settled and no cracks are present. Use lower rate for 4-month control and higher rate for 6–8 months control. Controls most germinating annual grasses and some annual broadleaf weeds. Treatments are most effective if rainfall or irrigation is received within 7 days after application.  Herbicide class 3, dinitroaniline, microtubule (root) inhibition.
norflurazon: Trees must be established in orchard at least 18 months. Apply to weed and trash-free soil. Rainfall or irrigation must follow within 4 weeks after application. Make only one application per year. Repeated applications over a period of years may result in tree injury if rates are not reduced after the first season. Do not apply to gravelly, sandy, loamy sand soils under sprinkler irrigation because of potential tree injury; death of young cherry trees has occurred under these conditions. Note cautions on label.  Herbicide class 12, pyridazinone, inhibits carotenoids (leaf color.)
oryzalin: Alternate trade name: Oryzalin 4AS. Oryzalin should be applied to weed-free soil or with paraquat or glyphosate when established weeds are present. One-half inch moisture (rain or sprinkler irrigation) needed to activate. Delay application to newly planted trees until ground is settled. Lower rate is for 4 month's control; higher rate for 8–12 months. Controls many annual grasses and broadleaf weeds but will not completely control some mustards or nightshades.  Herbicide class 3, dinitroaniline, inhibits microtubule (root) formation.
Stone fruit temporary
Broadleaf weeds
ProductRecommendationREIPHIMOA
2,4-D (Saber ) 70per acre: 3 pt48 h40 d4
clopyralid (Stinger ) 71per acre: 0.33-0.67 pt12 h30 d4
Comments
2,4-D: Alternate trade names: Orchard Master (not on apricots and nectarines), Weedar 64, Amine 4 and 2,4-D. Kills most annual and many perennial broadleaf weeds. Apply as directed spray to weeds. Avoid contact with foliage, limbs and trunk. Do not apply during windy periods. May be used at any time except during bloom but most effective when weeds are small and growing actively. Can be absorbed by tree roots and cause serious injury. Best results are obtained when applied within 2 days following an irrigation and the weeds are growing actively. In sprinkler-irrigated orchards, apply only after irrigation and never to dry or bare ground. Do not apply to trees established in orchard for less than 1 year. Do not make more than 2 applications per year. Do not harvest within 40 days of application.  Herbicide class 4, phenoxy-carbolic acid, a synthetic plant hormone.
clopyralid: Controls many difficult to control weeds in the sunflower, buckwheat (or knotweed), nightshade and legume families. Apply to actively growing weeds in a minimum of 10 gallons of water per acre. Apply to Canada thistle after a majority of basal leaves have emerged, but prior to bud stage. Up to two applications may be made during the crop year, but do not exceed a total of 2/3 pint of product per sprayed acre per year. Do not apply within 30 days of harvest.  Herbicide class 4, pyridine-carbolic acid, synthetic plant hormone. 
Stone fruit temporary
Grass and/or broadleaf weeds
ProductRecommendationREIPHIMOA
nonionic surfactant 6284per acre: 1 pt/ 100 galnone listednone listed
paraquat (Gramoxone Inteon) 6284per acre: 2.5-4 pt24 h28 d22
paraquat (Firestorm) 6289per acre: 1.7-2.7 pt24 h28 d22
nonionic surfactant 6289per acre: 1 pt/100 galnone listednone listed
Comments
paraquat: See entry for Gramoxone Inteon. 28 day PHI applies to all stone fruit but peach; PHI for peach is 14 days.
paraquat: 28 day PHI applies to all stone fruit but peach; PHI for peach is 14 days. Apply as a directed spray. May be used at any time, but most effective when weeds are no more than 4–6 inches tall and growing actively. Keep off tree foliage, fruit, and green bark. Often tank-mixed with soil residual herbicides to control established weeds. Use a full face shield, gloves and apron when filling and mixing. Do not ingest or inhale spray mist when spraying.  Herbicide class 22, bipyridilium, disrupts photosynthesis.
Bioregulators bloom thinning on apple
Easy to thin varieties including Red Delicious, Gala, Braeburn, Cripps Pink, Jonagold, Granny Smith, Honeycrisp
ProductRecommendationREIPHIMOA
lime sulfur/calcium polysulfide (Rex Lime Sulfur- blossom thinner) 6166per 100gl: 4-10 gal
ppm: 4-10 % v/v
48 hnone listed
fish oil 6167per 100gl: 2 gal
ppm: 2 % v/v
none listednone listed
lime sulfur/calcium polysulfide (Rex Lime Sulfur- blossom thinner) 6167per 100gl: 1-2 gal
ppm: 1-2 % v/v
48 hnone listed
petroleum oil- dormant 6168per 100gl: 0.5-1 gal
ppm: 0.5-1 % v/v
12 hnone listed
lime sulfur/calcium polysulfide (Rex Lime Sulfur- blossom thinner) 6168per 100gl: 1-2 gal
ppm: 1-2 % v/v
48 hnone listed
petroleum oil, summer 6169per 100gl: 1-1.5 gal
ppm: 1-1.5 % v/v
4 h0d
lime sulfur/calcium polysulfide (Rex Lime Sulfur- blossom thinner) 6169per 100gl: 1-2 gal
ppm: 1-2 % v/v
48 hnone listed
lime sulfur/calcium polysulfide (NovaSource Lime Sulfur - blossom thinner) 6722per 100gl: 1-2 gal
ppm: 1-2 % v/v
48hnone listed
petroleum oil- dormant 6722per 100gl: 0.5-1 gal
ppm: 0.5-1 % v/v
12 hnone listed
Comments
All varieties: Apply in sufficient water for full coverage of blossoms (100-200 gal/acre is adequate in most modern plantings). Make applications from 20% full bloom through petal-fall. No more than 3 applications of lime sulfur/oil combinations per growing season.
petroleum oil- dormant: 90--100 viscosity
lime sulfur/calcium polysulfide: Users must sign waiver and join Pest Management Northwest Inc. Lime-sulfur is toxic to both beneficial and harmful mites, and excessive use of sulfur products may disrupt integrated mite control.
Bioregulators bloom thinning on apple
Difficult to thin varieties including Golden Delicious, Fuji, Cameo, Pacific Rose
ProductRecommendationREIPHIMOA
lime sulfur/calcium polysulfide (Rex Lime Sulfur- blossom thinner) 6206per 100gl: 6-12 gal
ppm: 6-12 % v/v
48 hnone listed
fish oil 6207per 100gl: 2 gal
ppm: 2 % v/v
none listednone listed
lime sulfur/calcium polysulfide (Rex Lime Sulfur- blossom thinner) 6207per 100gl: 1-3 gal
ppm: 1-3 % v/v
48 hnone listed
lime sulfur/calcium polysulfide (Rex Lime Sulfur- blossom thinner) 6208per 100gl: 1-3 gal
ppm: 1-3 % v/v
48 hnone listed
petroleum oil, summer 6208per 100gl: 1-1.5 gal
ppm: 1-1.5 % v/v
4 h0d
petroleum oil- dormant 6209per 100gl: 0.5-1 gal
ppm: 0.5-1 % v/v
12 hnone listed
lime sulfur/calcium polysulfide (Rex Lime Sulfur- blossom thinner) 6209per 100gl: 1-3 gal
ppm: 1-3 % v/v
48 hnone listed
lime sulfur/calcium polysulfide (NovaSource Lime Sulfur - blossom thinner) 6720per 100gl: 1-3 gal
ppm: 1-3 % v/v
48hnone listed
petroleum oil- dormant 6720per 100gl: 0.5-1 gal
ppm: 0.5-1 % v/v
12 hnone listed
Comments
petroleum oil- dormant: 90--100 viscosity
lime sulfur/calcium polysulfide: Users must sign waiver and join Pest Management Northwest Inc. Lime-sulfur is toxic to both beneficial and harmful mites, and excessive use of sulfur products may disrupt integrated mite control.
Bioregulators post-bloom thinning on apples
All apple varieties
ProductRecommendationREIPHIMOA
carbaryl (Sevin 4F) 6212per acre: 1-3 qt12 h3 d1A
NAD (Amid-Thin W) 6216per 100gl: 2.4-8 fl oz
ppm: 15-50 ppm
48 hnone listed
6-BA (MaxCel) 6218per 100gl: 48-128 fl oz
ppm: 75-200 ppm
12 h86 d
Comments
NAD: NAD may cause formation of pygmy fruit in Red Delicious - use of alternative materials such as NAA is advised.
6-BA: Total annual application may not exceed 182 grams BA (308 fl oz of MaxCel, 296 fl oz Exilis Plus, 61.6 oz Exilis 9.5SC) per acre.
carbaryl: Do not apply when bees are actively foraging; remove hive from orchard. Other formulations of carbaryl may be even more toxic to bees (see http://www.tfrec.wsu.edu/pages/cpg/Bee_Protection). Early applications may contribute to fruit deformities in some strains of Red Delicious - check individual product labels for more guidance. Total annual application may not exceed 15 quarts per acre.
Bioregulators pear thinning
Bartlett, Bosc
ProductRecommendationREIPHIMOA
NAD (Amid-Thin W) 6221per 100gl: 1.6-8 fl oz
ppm: 10-50 ppm
48 hnone listed
Bioregulators pear thinning
Bartlett, Bosc, Comice
ProductRecommendationREIPHIMOA
NAA (K-Salt Fruit Fix 800) 6223per acre: 2-3 fl oz
per 100gl: 0.6-0.9 fl oz
ppm: 10-15 ppm
48 h2 d
Comments
NAA: Use lower rates if tank mixing with a surfactant - consult product labels for details. Note that appropriate rates vary widely between product formulations; double check labels to ensure proper concentrations.
Bioregulators pear thinning
All varieties
ProductRecommendationREIPHIMOA
6-BA (MaxCel) 6225per 100gl: 48-128 fl oz
ppm: 75-200 ppm
12 h86 d
Comments
6-BA: Total annual application may not exceed 182 grams BA (308 fl oz of MaxCel; 296 fl oz Exilis Plus; 61.6 fl oz Exilis 9.5SC) per acre.
Bioregulators apples and pears
ProductRecommendationREIPHIMOA
interior latex paint () 3041per 100gl: 25 gal
ppm: 25 % v/v
Bioregulators apples, nonbearing
To promote lateral branching (bud swell)
ProductRecommendationREIPHIMOA
interior latex paint () 3043
GA4+7+BA (Promalin) 3043per 100gl: 0.2-0.33 pt per pt of paint
ppm: 5000-7500 ppm
4 hnone listed
interior latex paint () 3044
GA4+7+BA (Perlan) 3044per 100gl: 0.2-0.33 pt per pt of paint
ppm: 5000-7500 ppm
4 hnone listed
Comments
To promote lateral branching (bud swell): Apply in spring when terminal buds begin to swell but before green tissues emerge. Apply the GA4+7 + BA-latex paint mixture with a brush or sponge to thoroughly cover the bark surface where growth is desired. Apply only to 1-year-old wood.
Bioregulators apples, nonbearing
To promote lateral branching (1-3 in terminal growth)
ProductRecommendationREIPHIMOA
surfactant (Regulaid) 3046per 100gl: 1.6-2.4 pt
ppm: 0.2-0.3 % v/v
NLNL
GA4+7+BA (Promalin) 3046per 100gl: 0.25-1 pt per 5 gal
ppm: 125-500 ppm
4 hnone listed
surfactant (Regulaid) 3047per 100gl: 1.6-2.4 pt
ppm: 0.2-0.3 % v/v
NLNL
GA4+7+BA (Perlan) 3047per 100gl: 0.25-1 pt per 5 gal
ppm: 125-500 ppm
4 hnone listed
Comments
To promote lateral branching (1-3 in terminal growth): Apply at 1 to 3 inches of new terminal growth. Approximately 5 to 10 gallons of spray mixture applied with a pressurized hand sprayer will treat 200 to 300 nonbearing orchard trees 1 to 4 years old. Rate depends on conditions and tree vigor; use higher rates with vigorous trees. Do not use on weak trees or stunted trees on M. 9 rootstocks. NOTE: Do not apply after buds break. Applications after buds have broken may cause some injury to tender shoot tips and fail to promote shoot growth from that point.
Bioregulators apples, bearing
To promote longer, typy Red Delicious
ProductRecommendationREIPHIMOA
GA4+7+BA (Promalin) 6751per acre: 0.5-2 pt
ai / acre: 0.5-2 pt
4 hnone listed
GA4+7+BA (Perlan) 6752per acre: 0.5-2 pt
ai / acre: 0.5-2 pt
4 hnone listed
Comments
To promote longer, typy Red Delicious: Apply when first blossoms are open, but not within 6 hours before or after rain. Can cause excess thinning on young trees.
Bioregulators apples, bearing
To suppress fruit russet
ProductRecommendationREIPHIMOA
GA4+7 (ProVide 10SG) 6755per 100gl: 2.1-3.5 oz
ppm: 15-25 ppm
4 hnone listed
Comments
To suppress fruit russet: Apply in no more than 100 gallons of water per acre per application beginning at petal fall and continuing every 7-10 days up to 4 applications. Do not exceed 80 fl oz Novagib 10L per acre per year.
Bioregulators apples, bearing
Vegetative growth control in apple
ProductRecommendationREIPHIMOA
prohexadione calcium (Apogee PGR) 6757per acre: 6-24 oz
ai / acre: 6-24 oz
12 h45 d
Comments
Vegetative growth control in apple: Apply starting at 1 inch shoot growth, repeat at 14- to 21-day intervals. Do not apply within 45 days of harvest. Use 300 gal of dilute spray/acre.
Bioregulators apples, bearing
To increase fruit size
ProductRecommendationREIPHIMOA
6-BA (MaxCel) 3060per 100gl: 6-32 fl oz
ppm: 10-50 ppm
12 h86 d
Comments
6-BA: Make 2–4 applications starting at petal-fall and repeating at 3- to 10-day intervals. Apply when temperatures will exceed 65°F for a few days following application. Do not apply within 86 days of harvest. Follow all label instructions.
Bioregulators apples, bearing
To decrease preharvest fruit drop, delay watercore and improve harvest maturity management
ProductRecommendationREIPHIMOA
organosilicone surfactant (Silwet L-77) 3066per acre: 0.05-0.1 % v/v
per 100gl: 0.05-0.1 % v/v
ppm: 0.05-0.1
ai / acre: 0.05-0.1 % v/v
none listednone listed
AVG (ReTain ) 3066per acre: 0.73 lb
per 100gl: 0.73 lb
ai / acre: 0.73 lb
12 h7 d
Comments
AVG: ReTain: Apply 4 weeks before anticipated start of single pick harvest or 1-2 weeks before start of multiple pick harvest depending on harvest schedule. A spray volume of 100 gallons per acre is suggested. Adjust to ensure adequate coverage. Do not exceed 50 grams ai per acre (one bag of formulated material). Use with registered surfactants. Refer to text.
Bioregulators pears, bearing
To prevent preharvest fruit drop (Anjou, Bartlett, Bosc)
ProductRecommendationREIPHIMOA
NAA (K-Salt Fruit Fix 800) 3068per 100gl: 0.5-1 fl oz
ppm: 8-16 ppm
48 h2 d
AVG (ReTain ) 6058per 100gl: 0.73 lb12 h7 d
organosilicone surfactant 6058per 100gl: 0.05-0.1 % v/vnone listednone listed
Comments
AVG: Apply ReTain 1-2 weeks before start of normal harvest. Follow label instructions.
Bioregulators sweet cherry, bearing
To delay fruit maturity
ProductRecommendationREIPHIMOA
GA3 (ProGibb 40%WSG) 3070per 100gl: 0.35-1 oz
ppm: 10-30 ppm
4 h0 d
Comments
To delay fruit maturity: Apply once or twice according to the product label approximately 3 weeks before expected harvest when fruit is straw colored. Improves fruit firmness and storage life. Delays maturity 3 to 7 days. Follow all label directions carefully. Note: 20 ppm = 0.50 pint (8 fl oz) ProGibb 4% or Falgro 4L, 0.67 oz ProGibb 40%WSG, or 1.33 oz Falgro 20SP /100 gallons water.
Nutrient dormant/delayed dormant
Zinc maintenance
ProductRecommendationREIPHIMOA
zinc sulfate, dry, 36% Zn () 1101per acre: 6-12 lb
per 100gl: 1.5-3 lb
zinc sulfate, liquid, 10-12% zinc () 1102per acre: 2-4 gal
per 100gl: 0.5-1 gal
basic zinc sulfate, dry, 50-52% Zn () 1103per acre: 6-12 lb
per 100gl: 2 lb with oil
basic zinc sulfate, dry, 50-52% Zn () 1104per acre: 6-12 lb
per 100gl: 3 lb w/o oil
basic zinc sulfate, liquid, 20-25% Zn () 1105per acre: See label
per 100gl: See label
zinc chelate or organic complex () 1106per acre: See label
per 100gl: See label
Comments
Zinc maintenance: Zinc sulfate: Dormant spray only. Dissolve in hot water before adding to spray tank. See precautions in text. Oil-free sprays are more effective. Follow manufacturer's recommendations for oil sprays. Basic zinc sulfate, zinc chelate/organic complex: Follow manufacturer's label for rates.
basic zinc sulfate, dry, 50-52% Zn: Apply without oil.
Nutrient dormant/delayed dormant
Zinc deficiency
ProductRecommendationREIPHIMOA
zinc sulfate, dry, 36% Zn () 1107per acre: 40 lb
per 100gl: 10 lb
zinc sulfate, liquid, 10-12% zinc () 1108per acre: 12 gal
per 100gl: 3 gal
basic zinc sulfate, dry, 50-52% Zn () 1109per acre: 16 lb
per 100gl: 4 lb
basic zinc sulfate, liquid, 20-25% Zn () 1110per acre: See label
per 100gl: See label
zinc chelate or organic complex () 1111per acre: See label
per 100gl: See label
Comments
basic zinc sulfate, dry, 50-52% Zn: Apply without oil.
Nutrient prepink/pink
Boron maintenance
ProductRecommendationREIPHIMOA
sodium borate, dry, 16.5-20.5% B () 1112per acre: 2.5-3 lb
per 100gl: 0.75 lb
boric acid, dry, 17% B () 1113per acre: 3 lb
per 100gl: 0.75 lb
boric acid liquid, 10% B () 1114per acre: 2 qt
per 100gl: 1 pt
Comments
Boron maintenance: Apply amount equivalent to 0. 5 pound actual B per acre. See text.
Nutrient prepink/pink
Boron deficiency
ProductRecommendationREIPHIMOA
sodium borate, dry, 16.5-20.5% B () 1115per acre: 5-6 lb
per 100gl: 1.25-1.5 lb
boric acid, dry, 17% B () 1116per acre: 6 lb
per 100gl: 1.5 lb
boric acid liquid, 10% B () 1117per acre: 1 gal
per 100gl: 1 qt
Comments
Boron deficiency: Apply amount equivalent to 1. 0 pound actual B per acre. See text.
Nutrient bloom
Nitrogen and sulfur maintenance
ProductRecommendationREIPHIMOA
ammonium thiosulfate, liquid, 12%N, 25%S () 1118per acre: See label
Comments
Nitrogen and sulfur maintenance: Apply after sufficient blossom set. Can cause flower and fruitlet injury. Warm temperatures can increase injury. Follow manufacturer's label for rates. See text.
Nutrient postbloom
Boron maintenance
ProductRecommendationREIPHIMOA
sodium borate, dry, 16.5-20.5% B () 1119per acre: 2.5-3 lb
per 100gl: 0.75 lb
boric acid, dry, 17% B () 1120per acre: 3 lb
per 100gl: 0.75 lb
boric acid liquid, 10% B () 1121per acre: 2 qt
per 100gl: 1 pt
Comments
Boron maintenance: Prepink to pink or postharvest timing is preferred. Apply amount equivalent to 0. 5 pound actual B per acre. See text.
Nutrient postbloom
Boron deficiency
ProductRecommendationREIPHIMOA
sodium borate, dry, 16.5-20.5% B () 1122per acre: 5-6 lb
per 100gl: 1.25-1.5 lb
boric acid, dry, 17% B () 1123per acre: 6 lb
per 100gl: 1.5 lb
boric acid liquid, 10% B () 1124per acre: 1 gal
per 100gl: 1 qt
Comments
Boron deficiency: Apply only if boron deficiency appears during growing season. Apply amount equivalent to 1. 0 pound actual B per acre. See text.
Nutrient postbloom
Calcium (cherry fruit firmness and reduced cracking)
ProductRecommendationREIPHIMOA
calcium nitrate fertilizer grade () 6713per acre: -- See comments
Comments
Calcium (cherry fruit firmness and reduced cracking): Six weekly sprays of Ca(NO3)2 or chelated Ca sources (Ca2+ at 0.1-0.15%) between pit hardening and harvest has been shown to increase calcium quantity in fruit and post harvest quality (Wang, 2016). Greater than 0.2% Ca2+ increases risk of leaf burning and reducing fruit size. Fruit applications do not replace, but only augment, good management of soil Ca, irrigation and root health.
Nutrient postbloom
Calcium (bitterpit of apples)
ProductRecommendationREIPHIMOA
calcium chloride, dry, 34-36% Ca () 1127per acre: 2-4 lb
Comments
Calcium (bitterpit of apples): 2-4lb/A per application. Make 6 to 12 applications from early June to Late August. 5 to 15 lbs of actual Ca per season is recommended which equals 15 to 50 pounds of calcium chloride per acre per season. Calcium in the form of calcium chloride is recommended because of its proven effectiveness and lower cost. See Penn State Extension’s useful calculator for comparing calcium chloride to other sources of calcium, as it is important to make sure you develop a season-long program for applying sufficient total amounts of elemental calcium.

Rate Recomendations Actual Ca lb/A per season

Actual Ca lb/A Expected Results
4-5 This is the lowest rate that should be used. It will give some control of bitter pit and corking, will cause no leaf burning and is not likely to enhance storage.
6-8 Should give good control of preharvest physiological disorders. It should not cause any significant leaf injury and will probably not enhance fruit storage life.
9-11 Should give excellent control of corking and bitter pitting and should be the intermediate rate. It may enhance fruit storage life and shoudl result in almost no leaf injury.
12-14 The highest rate that should be used. Should give outstanding control of corking and bitter pit. May result in some enhanced storage life.

Courtesy Dr. Rob Crassweller, Penn State Extension.

Nutrient postbloom
Calcium (pear alfalfa greening, Anjou cork spot)
ProductRecommendationREIPHIMOA
calcium chloride, dry, 34-36% Ca () 1130per acre: 4 lb
per 100gl: 0.5-1 lb
Comments
Calcium (pear alfalfa greening, Anjou cork spot): Apply four applications from early June to August. Dilute sprays are most effective. Can cause fruit injury. See text.
Nutrient postbloom
Copper deficiency
ProductRecommendationREIPHIMOA
copper chelate or organic complex () 1132per acre: See label
basic copper sulfate, liquid () 1133per acre: See label
Comments
Copper deficiency: Follow manufacturer's label. May be incompatible with calcium chloride. Can cause fruit injury. See text.
Nutrient postbloom
Iron (lime-induced chlorosis)
ProductRecommendationREIPHIMOA
iron chelate or organic complex () 1134per acre: See label
Comments
Iron (lime-induced chlorosis): Follow manufacturer's label.
Nutrient postbloom
Magnesium deficiency
ProductRecommendationREIPHIMOA
magnesium nitrate, dry, 13.5% Mg () 1136per acre: 20-40 lb
per 100gl: 5-10 lb
magnesium nitrate 0.4LC () 1137per acre: 6-12 gal
per 100gl: 1.5-3 gal
magnesium chelate or organic complex () 1139per acre: See label
calcium nitrate fertilizer grade () 6202per acre: 24-48 lb
per 100gl: 6-12 lb
magnesium sulfate () 6202per acre: 40-80 lb
per 100gl: 10-20 lb
Comments
Magnesium deficiency: Apply in June. Repeat in July if necessary. Do not apply after August 1. Follow manufacturer's label for labeled product rates.
Nutrient postbloom
Nitrogen deficiency
ProductRecommendationREIPHIMOA
urea () 1140per acre: 2-10 lb
per 100gl: 0.5-2.5 lb
Comments
Nitrogen deficiency: Apply only as needed to apples or cherries. Not effective on pear or other stone fruits and can cause injury. See text.
Nutrient postbloom
Zinc deficiency, nonbearing trees
ProductRecommendationREIPHIMOA
zinc sulfate, dry, 36% Zn () 1141per acre: 6-12 lb
per 100gl: 1.5-3 lb
zinc sulfate, liquid, 10-12% zinc () 1142per acre: 2-4 gal
per 100gl: 0.5-1.5 gal
basic zinc sulfate, dry, 50-52% Zn () 1143per acre: 6-12 lb
per 100gl: 1.5-3 lb
basic zinc sulfate, liquid, 20-25% Zn () 1144per acre: See label
zinc chelate or organic complex () 1145per acre: See label
Comments
Zinc deficiency, nonbearing trees: See precautions in text. Can cause injury, particularly on stone fruits. Follow manufacturer's label for labeled products.
Nutrient postbloom
Zinc deficiency, bearing trees
ProductRecommendationREIPHIMOA
zinc chelate or organic complex () 1146per acre: See label
Comments
Zinc deficiency, bearing trees: Follow manufacturer's label.
Nutrient postharvest
Boron maintenance
ProductRecommendationREIPHIMOA
sodium borate, dry, 16.5-20.5% B () 1147per acre: 2.5-3 lb
per 100gl: 0.75 lb
boric acid, dry, 17% B () 1148per acre: 3 lb
per 100gl: 0.75 lb
boric acid liquid, 10% B () 1149per acre: 2 qt
per 100gl: 1 pt
Comments
Boron maintenance: Apply amount equivalent to 0. 5 pound actual B per acre. See text.
Nutrient postharvest
Boron deficiency
ProductRecommendationREIPHIMOA
sodium borate, dry, 16.5-20.5% B () 1150per acre: 5-6 lb
per 100gl: 1.25-1.5 lb
boric acid, dry, 17% B () 1151per acre: 6 lb
per 100gl: 1.5 lb
boric acid liquid, 10% B () 1152per acre: 1 gal
per 100gl: 1 qt
Comments
Boron deficiency: Apply amount equivalent to 1. 0 pound actual B per acre. See text.
Nutrient postharvest
Zinc maintenance
ProductRecommendationREIPHIMOA
zinc sulfate, dry, 36% Zn () 1153per acre: 6-12 lb
per 100gl: 1.5-3 lb
zinc sulfate, liquid, 10-12% zinc () 1154per acre: 2-4 gal
per 100gl: 0.5-1 gal
basic zinc sulfate, dry, 50-52% Zn () 1155per acre: 6-12 lb
per 100gl: 1.5-3 lb
basic zinc sulfate, liquid, 20-25% Zn () 1156per acre: See label
zinc chelate or organic complex () 1157per acre: See label
Comments
Zinc maintenance: Do not apply before daytime temperatures drop below 80°F (usually October). Do not apply on apricot. Follow manufacturer's label for labeled product rates. See precautions in text.
Nutrient postharvest
Zinc deficiency
ProductRecommendationREIPHIMOA
zinc sulfate, dry, 36% Zn () 1158per acre: 10-12 lb
per 100gl: 2.5-3 lb
zinc sulfate, liquid, 10-12% zinc () 1159per acre: 7 gal
per 100gl: 1.75 gal
basic zinc sulfate, dry, 50-52% Zn () 1160per acre: 14 lb
per 100gl: 3.5 lb
basic zinc sulfate, liquid, 20-25% Zn () 1161per acre: See label
zinc chelate or organic complex () 1162per acre: See label
Comments
Zinc deficiency: Do not apply before October 1. Do not apply on apricot. Follow manufacturer's label for labeled product rates. See precautions in text.
Nutrient postharvest
Copper deficiency
ProductRecommendationREIPHIMOA
copper sulfate, dry, 25% Cu () 1163per acre: 4 lb
per 100gl: 1 lb
copper sulfate or basic copper sulfate, liquid, 4-14% Cu () 1164per acre: See label
Comments
Copper deficiency: OK to tank-mix with postharvest zinc sulfate or basic zinc sulfate sprays. Follow manufacturer's label for labeled product rates.
Fruit protectant apple sunburn
Sunburn on apples
ProductRecommendationREIPHIMOA
Raynox 6280per acre: 2.5 gal
per 100gl: 2.5 gal
kaolin clay (Surround WP) 6282per acre: 25-50 lb
per 100gl: 25-50 lb
4 h0 d
Comments
Sunburn on apples: DO NOT mix RAYNOX and Surround in the same tank; they are physically incompatible. Do not apply RAYNOX and Surround in the same season on the same trees.
Raynox: Follow manufacturer's label, and apply 2.5 gal. RAYNOX in either 50 or 100 gal. water conditioned with RAYNOX water softener (according to label). To maintain good coverage of fruits as they expand, four applications should be made: first about 7 weeks after full bloom; 2nd 10 days later; third 3 weeks later; and fourth 4 weeks later. Do not apply when air temperature exceeds 85 °F.
For RAYNOX AIR, mix 2.5 gal RAYNOX AIR in 15 gal. of conditioned water. Apply no less that 17.5 gallons of spray volume per acre. Four applications should be made as described above for RAYNOX.
For RAYNOX ORGANIC, mix 3.0 gal RAYNOX ORGANIC in 47 or 97 gallons of water (no RAYNOX water softener is needed). Four applications should be made as described above for RAYNOX.
kaolin clay: Follow manufacturer's label. At least three applications are recommended. Do not apply any substance with or on top of particle film sprays that will increase the difficulty of removal.
Fruit protectant cherry cracking
Cracking from rain
ProductRecommendationREIPHIMOA
RainGard () 6281per acre: 102 fl oz
per 100gl: 102 fl oz
Comments
RainGard: Follow manufacturer's label, and apply 102 ounces RainGard in 100 gal. water. Best efficacy is obtained with 0.8% (v/v) dilution and must be maintained with larger spray volumes to improve coverage. In addition, to maintain good coverage of fruits as they expand, three applications should be made. First application is made about 4 weeks before harvest with additional applications at 7-10 day intervals thereafter. RainGard is usually compatible with commonly used agricultural products to be tank mixed.
Tree Fruit Research & Extension Center, 1100 N Western Ave, Washington State University, Wenatchee WA 98801, 509-663-8181, Contact Us