July, 2022
The not-unexpected but very saddening arrival of emerald ash borer (EAB) has been in the news since its discovery in Forest Grove June 30th.
OSU Extension is working with the Oregon Department of Agriculture (ODA), Oregon Department of Forestry (ODF) and other state partners to assess the situation and work on coordinating resources and responses. This will be important to determining the extent of the infestation, and limiting its rate of spread.
We have been compiling information to help people understand the situation and respond in as productive a way as possible. Ash trees commonly show signs of stress and injury. FNR forest Health Specialist Dave Shaw cautions against jumping to conclusions, but to use these guides and resources to help decide if what you see is something that should be reported. The world is full of little green bugs. Agency resources are limited, so it is important to report only likely cases.
I am sorry to be sharing all this. But as woodland owners it is important to be informed so you can help other people understand and react responsibly, including avoiding moving the pest around in firewood! Don’t Move Firewood
 
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Emerald ash borer detected in Oregon
This recent compilation of resources gives you the basics of the situation, and paths to lots of detailed information. It has links to resources to help you identify ash trees (and distinguish from similar looking trees), how to identify EAB (including an illustrated resource of EAB look-alikes by the ODA) and an EAB fact sheet (ODF). It has a link to the Oregon Forest Pest Detector program Field Guide, which includes an EAB reporting decision tree, and of course there is a link to the Invasive Species Hotline if that is needed.
Oregon Forest Pest Detector Free Online Course
You can learn more about the emerald ash borer, other invasive pests, and how you can help contribute to Oregon's early detection and rapid response by taking the course.
In the Woods Podcast Episode 23: Emerald Ash Borer
If you prefer to listen than read, this 40 min Podcast is an excellent discussion EAB and our response
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