2018 Crop Protection Guide for Tree Fruits in Washington

Pear Programs

Saturday, June 23, 2018

Pear at Preharvest

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

= link to additional information in Orchard Pest Management


 Bull's
eye
rot
Storage
rots
REIPHIModeMRL

Product

Except where noted, rates are amount per acre
Efficacy if estimate is available (+ to ++++)
 
Merivon
pyraclostrobin+fluxapyroxad
--
5.5 fl oz

12 h

0 d

11,7
 
Pristine
pyraclostrobin+boscalid
--
14.5-18.5 oz

12 h

0 d

11,7
Topsin M 70WP
thiophanate-methyl

1 lb

1 lb

2 d

1 d

1
Ziram 76DF
ziram
--
6 lb

48 h

14 d

M3
Ziram Granuflo 76WDG
ziram

6 lb
--
48 h

5 d

M3

Storage rots: A ground applied, dilute application leading to excellent coverage is essential for the control of storage rots.


Pristine: 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.

Topsin M 70WP: 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.

Topsin M 70WP: 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.

Ziram Granuflo 76WDG: Because of visible residues, do not use ziram on Asian pears.


 

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