Authors: Robert Orpet, Chris McCullough, Molly Sayles and Louie Nottingham; WSU Entomology. March 14, 2022
The Nottingham 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 summary of pear psylla adult, egg, and nymphs across sites is in Figure 2 (Summer) and Figures 3-4 (Spring), and data per site in are in Tables 1–6.
How we Sample
We sample pear psylla adults (Table 1) and natural enemies (Table 4) 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 (Table 2) and nymphs (Table 3), mites (Table 5), and earwigs (Table 6).