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Pear IPM Intensive

December 14, 2022 @ 9:00 am - 3:00 pm

Join WSU Extension and the Pear IPM team for an intensive workshop delving deep into effective integrated pest management for pears.

Who should come

For pear orchardists, fieldstaff, consultants, and scouts.

What to expect

  • Lectures, hands on activities and in-depth discussion;
  • Improve your confidence in psylla and natural enemy identification;
  • Learn how to use newly updated thresholds for psylla and natural enemies;
  • Increase the success of selective bio-based IPM programs for your operation using phenology models, honeydew washing and thresholds.


3 pesticide update credits with WSDA ODA approval.


This is an in person event with an option to participate via webinar (zoom). Zoom participants will not be able to interact vocally during discussions.


Registration required.

For in person participation please register here

For webinar virtual participation please register here

In person registrants please register by the 9am the Monday before the event. For late in person registration email or call Tianna (509) 293-8758 there have been some cancellations. For in person participants who need to switch to online please email or call the event contact with cancellation and self register for the webinar.

Space limited. Register today! No Fee. A $112 value available at no fee due to grant and sponsorship support.


Louis Nottingham His lab works to improve insect and mite pest management practices in commercial tree fruit orchards. Topics include insect behavior, phenology, biological control, cultural control, and chemical control.

Robert Orpet has been a pear entomologist at WSU TFREC since 2019. He manages experiments and talks with people to create and share knowledge on how to integrate biocontrol, cultural tactics, and chemicals for pest management.

Tianna DuPont is a WSU Tree Fruit Extension Specialist. Her work focuses on helping growers understand and apply research based solutions for tree fruit pests and pathogens.

Rebecca Schmidt-Jeffris, Research Entomologist USDA ARS. Her lab focuses on biological control of arthropod pests of tree fruit, including apples, pears, and cherries.

Dowen Jocson is a PhD candidate in the Entomology Program at Washington State University under the mentorship of Dr. Elizabeth Beers and Dr. David Crowder. She is interested in using acoustics, specifically substrate-borne vibrations for mate disruption in a pest of pear, Cacopsylla pyricola.

Rick Hilton is a researcher at the Southern Oregon Research and Extension Center. His work focuses on integrated pest management, mating disruption and conservation of natural enemies.

Sponsors and Acknowledgements

Thank you to funding support from the Washington State Department of Agriculture Specialty Crop Block Grant program, the USDA Crop Protection Grant program, the Washington State Tree Fruit Research Commission and the Fresh and Processed Pear Committee.

Lunch Sponsors

NCW Fieldmen’s Association

S & W Irrigation Supply, LLC

Nova Source


Coffee Sponsors


GS Long

Agenda (Draft)

9:00 am               Welcome

9:10 am               Introduction: Bio-based IPM Programs Can Conserve Natural Enemies. Tianna DuPont, WSU.  Who are our key natural enemies? Five-year Experience with Bio-based IPM.

9:30 am               Southern Oregon IPM Programs, Selective Codling Moth Management. Rick Hilton, OSU

9:50 am               Activity 1: Natural Enemy ID  Participants will view key natural enemies under the microscope in groups. Each group will do a QUIZ to see if they can ID on their own.

10:20 am            Break

10:35 am            Phenology-based integrated pear pest management step by stepRobert Orpet, Louis Nottingham, WSU. Timing and effectiveness of cultural practices and insecticide applications throughout the season. Effectiveness in 2022.

11:05 am            Insecticide Efficacy and Indirect Effects.  Louis Nottingham, Rob Curtiss, WSU

11:35 am            Discussion

Noon                   Lunch

1:00 pm              Incorporating Honeydew Washing into the Pear IPM Toolbox. Success in replicated trials. Grower Panel. Thresholds.

1:30 pm              What’s New – New Research Panel. Rebecca Schmidt Jeffris, USDA; Dowen Jocson, WSU

2:00 pm              Using Psylla and Natural Enemy Thresholds and the Scouting Network to Fine Tune Your IPM Program. Tianna DuPont, WSU

 2:30 pm             Discussion

 3:00 pm             Evaluation Survey & Pesticide Credits

Persons with disabilities who require alternative means for communication or program information or reasonable accommodation should contact (509) 293-8758 at least two weeks prior to the event.


December 14, 2022
9:00 am - 3:00 pm


WSU Extension – Tianna DuPont
(509) 293-8758


Confluence Technology Center
285 Technology Center Way
Wenatchee, WA 98801
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Washington State University