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Member Symposium

Plant-Insect Ecosystems

Science Policy

A Multi-State Update on Brown Marmorated Stink Bug: Battling an Invasive Pest with Science & Policy

10 years of biological control of Halyomorpha halys with Trissolcus japonicus in Oregon

Wednesday, November 12, 2025
2:00 PM - 2:20 PM Pacific
Location: Oregon Convention Center, D136, OCC
Oral Presentation
After the initial discovery of adventive populations of Trissolcus japonicus in the Pacific Northwest in 2015, we initiated a program to redistribute the wasps across important specialty crop production regions of Oregon, an effort that continues today through the Oregon Department of Agriculture. The wasp has now become broadly established, and we have documented multi-year establishment in many sites and ecoregions. Recently, our research has focused on the improvement of rearing of the parasitoid for redistribution and augmentative releases, better understanding of host use of the parasitoid, and population genetics of wasp populations present across Oregon.