2017 Crop Protection Guide for Tree Fruits in Washington

Stone Fruit Programs

Sunday, January 21, 2018

Stone Fruit (not Cherry) at Postharvest

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

= link to additional information in Orchard Pest Management


 Plum
aphids
Shothole
borer
Peach
silver
mite
Spider
mites
Peach
leaf
curl,
bacterial
gummosis,
coryneum
blight
Recommended on
(Pe=Peach; Ne=Nectarine; Ap=Apricot; Pl=Plum)
REIPHIMode

Product

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

14 d

3A
Assail 30SG
acetamiprid
--
8 oz
-- -- --
12 h

7 d

4A
Diazinon 50W
diazinon

4 lb
-- -- -- --
4 d

21 d

1B
Imidan 70W
phosmet

4 lb
-- -- -- --
7 d

14 d

1B
Omite 30WS
propargite
-- --
5 lb

5 lb
--
5 d

14 d

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

14 d

12B
sulfur, dry flowable -- -- See label -- -- 24 hNLM2
Basic Copper 53
fixed copper
-- -- -- --
See label

24 h

0 d

M1
Bravo Ultrex 82.5WDG
chlorothalonil
-- -- -- --
See label

12 h

NL

M5
Captan 50WP
captan
-- -- -- --
See label

24 h

0 d

M4
Kocide 3000
copper hydroxide
-- -- -- --
See label

48 h

0 d

M1
Ziram Granuflo 76WDG
ziram
-- -- -- --
6 lb

48 h

30 d

M3

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.

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.

Peach leaf curl, bacterial gummosis, coryneum blight: apply most materials before autumn rains or after October 1.


Omite 30WS: for use on nectarines only.

Basic Copper 53: rates vary according to manufacturer. Do not use copper materials before October 1, or before leaf drop.


 

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