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How to assess cold damage

Following a cold night like this past Saturday/Sunday, many growers are concerned about damage to their crops. Here is a brief tutorial for assessing damage…

Powdery Mildew of Cherry: Fungicide Resistance Update 2021

Recent research in our laboratory has identified resistance to Group 11 (QoI or strobilurin) and Group 3 (DMI) fungicides in the cherry powdery mildew pathosystem…

Opportunity to comment on potential loss of mating disruption materials from organic approved list

The National Organic Standards Board is reviewing inert ingredients which if lost could make pheremone mating disruption not available for organic. Please see the communication…

AgWeatherNet Spring Frost Program

For the past 25 years Clearwest had provided frost forecasts for Central Washington fruit growers and decided to end this service after the 2020 season.…

Codling Moth Mating Disruption Considerations

Codling moth mating disruption is the foundation for integrated pest management in apple and pears. It is important to remember that the mode of action…

Resources for Little Cherry & X-disease Scouting and Sampling 2021

Multiple resources are available for scouting and sampling of X-disease and Little Cherry disease during the 2021 season. X-disease and Little Cherry Virus Scouting and…

Full Bloom Dates for Red Delicious Apples

Current degree days for Wenatchee are 445, + 35 from 30 year average and -154 from 2020 (March 21, 2021).

Plan for Multiple Fire Blight Conditions, Be Agile

The last few years have built up fire blight inoculum in our orchards. Consider designing a toolbox of plans you can choose from depending on…

Tree Removal Methods for X-Disease and Little Cherry Disease- Preliminary Trial Report

In 2019 and 2020 four trials and four grower case studies were conducted to clarify recommendations for tree removal when trees are infected with Little…

Register now for the Airblast 2021: Optimizing Canopy Sprayers webinar!

This is a two-day webinar (3/29-30) providing participants with practical information to maximize the effectiveness and efficiency of their air-assisted sprayers used in orchards, vineyards,…
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Washington State University