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2023 Pear Pest Scouting

Authors: Robert Orpet and Molly Sayles; WSU Entomology. March 9, 2023

The Pear Insects Lab at WSU-TFREC is monitoring pear pests at seven commercial locations in the Wenatchee Valley in addition to the WSU research center orchard (‘Sunrise’) near Rock Island (Figure 1). At each location, one block follows our phenology-based IPM guidelines and another block follows standard conventional management. We are also monitoring organically managed blocks at three of the locations. All blocks contain mostly Anjou and Bartlett trees planted >50 years ago, except for Rock Island, which was planted in 2007.

A weekly update in our pear pest, natural enemy, and pear psylla degree-day model information is publicly posted weekly in Pear Entomology Weekly.

Pear Entomology Weekly (PEW)

Most current issue: Vol. 1, Issue 14, June 23

New issues come out Fridays. To receive weekly to your e-mail on time, you can subscribe with our web form.

Spring milestone issue: Vol. 1, Issue 9, May 18

This issue summarizes the Spring 2023. The following issues switch to different methods for sampling summer pear psylla and start with new graphs.

How we Sample

We sample pear psylla adults and natural enemies with beat tray taps. In spring, we collect buds to monitor psylla eggs and nymphs.  In summer through fall, we collect leaves to monitor psylla eggs and nymphs, mites, and earwigs.

Contact Information

Contact Information

Robert Orpet

Dr. Robert Orpet
Postdoctoral Research Associate
WSU Tree Fruit Research & Extension Center
1100 N Western Ave., Wenatchee, WA 98801

Molly Sayles

Molly Sayles
PhD student
WSU Tree Fruit Research & Extension Center
1100 N Western Ave., Wenatchee, WA 98801

This Project was Funded by:



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