2018 Crop Protection Guide for Tree Fruits in Washington

Stone Fruit Programs

Monday, April 23, 2018

Stone Fruit (not Cherry) at Delayed-dormant

See General Recommendations for guidelines on table use. Read all product labels carefully.

= link to additional information in Orchard Pest Management


 European
red
mite
(overwintering
eggs)
Green
peach
aphid
San
Jose
scale,
lecanium
scale
Recommended on
(Pe=Peach; Ne=Nectarine; Ap=Apricot; Pl=Plum)
REIPHIMode

Product

Except where noted, rates are amount per acre 
Asana XL
esfenvalerate
+ petroleum oil- dormant
--
6-8 fl oz
1-1.25 % v/v
--
12 h
12 h

14 d
NL

3A
 
Esteem 35WP
pyriproxyfen
+ petroleum oil- dormant
-- --
4-5 oz
1-1.25 % v/v

12 h
12 h

14 d
NL

7C
 
Lorsban Advanced
chlorpyrifos
+ petroleum oil- dormant
-- --
4 pt
1-1.25 % v/v

4 d
12 h

NL
NL

1B
 
Supracide 2E
methidathion
+ petroleum oil- dormant
-- --
8 pt
1-1.25 % v/v

3 d
12 h

NL
NL

1B
 
petroleum oil- dormant 1-1.25 % v/v1-1.25 % v/v6 gal12 hNL 

Green peach aphid: Control is only necessary on peach/nectarine. Delaying green peach aphid sprays past stage 2 will reduce effectiveness of recommended materials.

San Jose scale, lecanium scale: oil plus an organophosphate is preferred because of improved scale control, and control of other pests.


Asana XL: Asana may cause increased mite problems, especially when used after delayed dormant

Lorsban Advanced: trunk spray; apply only as a dormant or delayed dormant spray. Make only one application of chlorpyrifos per year.

petroleum oil- dormant: Oil is indispensible for an integrated mite control program. Avoid spraying oil during cool (lower than 45F), damp, or windy weather. Adequate agitation is required. Do not use over 5 gallons of oil per acre on mature trees.


 

Tree Fruit Research & Extension Center, 1100 N Western Ave, Washington State University, Wenatchee WA 98801, 509-663-8181, Contact Us