pear psylla

Pear Psylla Integrated Pest Management

Cacopsylla pyricola (Foerster) (Hemiptera: Psyllidae) Updated by Louis Nottingham, Robert Orpet, WSU Entomology; Tianna DuPont, WSU Extension. May 2022. Adapted from by Everett C. Burts, Helmut Riedl, and John Dunley, originally published 1993. Pear psylla is an important pest of pear in Washington. Honeydew produced by pear psylla causes fruit russet, and serious infestations can […]

a leaf with a dark colored hardshell psylla nymph and a smaller light colored young nymph.

The First Year of the Pear Psylla Phenology-based Management Program Exhibits IPM Success

IPM was as effective as conventional management at controlling pear psylla by Molly Sayles, Robert Orpet, and Louis Nottingham November 28, 2022 IPM works by having a spray program that promotes natural enemies, which provided effective (and free!) control of pear psylla. This season revealed that IPM can control pear psylla as effectively as conventional […]

Reducing areawide pear psylla winterforms requires an areawide effort

Sticking the landing, post-harvest psylla populations by Chris McCullough, Robert Orpet, Molly Sayles, and Louis Nottingham November 7, 2022 During the 2022 pear growing season, our WSU pear entomology team monitored pear psylla and its natural enemies (predators and parasitoids) across orchards in the Wenatchee Valley. Orchards were either conventional, organic, or followed our new […]

IPM for Psylla Using Kaolin and Reflective Mulch

Integrated Pest Management Programs for Pear Psylla, Cacopsylla pyricola (Förster) (Hemiptera: Psyllidae), Using Kaolin Clay and Reflective Plastic Mulch September 1, 2022 Pear psylla, Cacopsylla pyricola (Förster) (Hemiptera: Psyllidae), is the most economically important pest of pears grown in Washington State. Standard conventional management programs involve season-long broad-spectrum insecticide sprays. Although the industry uses some […]

Sustainable Control of Pear Psylla

February 22, 2021 Be BRAVE: Pear Psylla Management On Thursday, February 18, 2021 as part of an OSU/WSU webinar, Stijn van Laer gave a talk on pear psylla management in northern European pear orchards.  Stijn is a crop consultant that works for company called FruitConsult based in Belgium.  They are a private consulting firm that […]

mostly white slide with drawing of tree fruits in the lower left corner, a small video feed of the speaker in the upper right corner and the title be brave pear psylla management

2021-2022 Pear IPM Study Circles

Join us for pear study circles this winter – they’re free!  It’s a great learning opportunity for growers, consultants, researchers, and industry professionals.  Our goal is to improve pear profitability and sustainability. Each study circle will include a 30 minute presentation and 2 hours of facilitated discussion. Topics include: Oct 19, 2021 – Choosing products […]

green anjou pear with droplets of water on the side

Plant Defense Elicitors

November 18, 2021 Test of plant defense elicitors for arthropod pest suppression and PR-1 gene induction in pear orchards Plant defense elicitors (PDEs) are chemicals that stimulate plant defenses against pathogens and herbivores. Previous work shows that PDEs acibenzolar-S-methyl (ASM) and harpinab protein (harpin) can induce the pathogenesis-related gene PR-1 in plants and suppress herbivorous […]