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The Utility of Bitter Pit Prediction Models for Honeycrisp in Washington State

Written by Ines Hanrahan and Marcella Galeni, Washington Tree Fruit Research Commission, June 2019.        At a Glance: Methods evaluated: Ethephon method; Passive method;…

Cherry Insect Control during Harvest

June 7, 2019, WSDA PMD (TWS)   The 2019 cherry harvest has begun. During this time, it may be necessary to apply insecticides to manage…

Managing earwigs: how and why to conserve in pome fruits and suppress in stone fruits

Earwigs are omnivores capable of damaging fruits, but they can also suppress pests such as woolly apple aphid and pear psylla. So, are earwigs pests…

Tips to minimize apple and pear fruit infections in atypical cool and wet early season

Written by Achour Amiri, WSU, May 2019   The unusual cool and wet spring observed, so far this season in Central Washington, has to be…

Fire blight susceptibility of apple cultivars

New research documents the relative susceptibility to fire blight of a broad range of apple cultivars.

Use Fungicide Resistance Management for Powdery Mildew

WSU's Gary Grove describes best management practices for fungicide resistance management for cherry powdery mildew.

Pear Psylla Update and Soft Spray Strategies

Written by Louis Nottingham, WSU, May 2019 Greater densities of pear psylla adults have been observed this spring than in 2018. Many orchards in the…

Developing a cv. WA 38 starch scale for the Washington State apple industry

Written by Ines Hanrahan and Marcella Galeni, Washington Tree Fruit Research Commission, May 2019   At a Glance WA 38 develops two predominant starch patterns…

Honey Bee Management in Tree Fruit Orchards

An update on honeybee management for tree fruit orchards from Tim Lawrence, WSU Extension, and Tory Schmidt, WA Tree Fruit Research Commission.

How to Effectively Manage Codling Moth

Without any intervention, codling moth numbers increase about four-fold from generation to generation. Therefore, targeting the first generation is important to reset the population size…
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