• There are many black and yellow wasps in Oregon. Proper identification is important before reporting. Here are some ID tips:
    • This wasp is very LARGE! 1.5″ to 2″ long
    • It has a striped abdomen, yellow head, and black eyes
    • The thorax (where wings attach) is black
  • Predator of many large-bodied insects (grasshoppers, beetles, etc.)
  • Potential serious threat to honeybees
  • Ground-nesting, active from May to August
  • Detected in August 2019 British Columbia (eradicated); 0 confirmed sightings to date in Oregon. 4 confirmed sightings (dead) in Washington state + 1 active nestread news articles from October 2020;
*** NEW ! *** An Extension publication is now available highlighting identification, effect on honey bees, invasion potential, and more. CLICK THE PHOTO to access the publication.
Photo credit: Chris Hedstrom, Oregon IPM Center


There are a number of regional experts who can offer advice, answer questions, and field suspected reports of sightings. Please consult the OSU Extension publication for ID tips, answers to common questions, etc. Early detection is key to limit the effects of invasive species.

“It is certainly something to be … watchful for … [but]… I don’t think there’s a need for panic at all” ~ Eric Lee-Mader

Lee-Mader is a pollination conservation expert with the Xerces Society and has worked with AGH in Japan. Quotes extracted from his 4 MAY 2020 interview with KGW8 News, available here.

3 thoughts on “Northern Giant Hornet – PNW info sources

  1. I believe I have a killer hornet. Who can I leave it with and who is tracking these things? It was found in Alpine Ore


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