2018 Crop Protection Guide for Tree Fruits in Washington

Cherry Programs

Monday, July 23, 2018

Cherry After Harvest

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

= link to additional information in Orchard Pest Management


 Pandemis
leafroller,
obliquebanded
leafroller
Shothole
borer
Spider
mites
Powdery
mildew
REIPHIModeMRL

Product

Except where noted, rates are amount per acre 
Asana XL
esfenvalerate
--
14.5 fl oz
-- --
12 h

14 d

3A
 
Bacillus thuringiensis subsp. kurstaki See label -- -- -- 4 h0 d11B2  
Omite 30WS
propargite
-- --
6 lb
--
2 d

NL

12C
 
Vendex 50WP
fenbutatin oxide
-- --
1-2 lb
--
48 h

14 d

12B
lime sulfur/calcium polysulfide -- -- -- See label48 hNL   
petroleum oil, summer -- -- -- 1-2 % v/v4 h0d   

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.

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.


Bacillus thuringiensis subsp. kurstaki: Bts are stomach poisons so complete coverage is very important for control. Two or three applications are usually required.

petroleum oil, summer: Do not spray wet foliage. Do not spray when freezing temperatures are anticipated within 48 hours of an oil application, above 90° F (32° C) or when plants are under heat or moisture stress.


 

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