Emerald Ash Borer
(OSU extension photo)
The emerald ash borer (EAB) is an invasive beetle first introduced in the eastern U.S. that has wiped out native ash trees wherever it has spread. It was recently found in Forest Grove, near Portland. By all accounts, containment is not possible after it has become established. We can expect it to reach the southern Willamette Valley within ten years. The impact on our site will be significant.
Notes of the EAB subcommittee of the OCF Land Use Management Planning (LUMP) committee.
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See Oregon Department of Forestry fact sheet for more information.
Oregon Invasive Species Council for more links.
An OSU Extension Service collection of on-line resources and information
Oregon Department of Agriculture quarantine
OSU Extension Service--How to Recognize Ash Trees
Readiness and Response Plan for Oregon
Hardwoods of the Pacific Northwest
Ash replacement trees evaluation
Alternatives to ash (OSU Extension)
Mediterranean oak borer (Oregon Department of Forestry)
Arborist Kevin Hillery's article in the Fair Family News, December 2022
Audio recording of first EAB subcommittee January 3, 2023
Audio recording of the EAB subcommittee Feb. 7, 2023
Audio recording of the EAB subcommittee March 7, 2023
Audio recording of the EAB subcommittee May 2, 2023
Audio recording of the EAB subcommittee June 6, 2023
Audio recording of the EAB subcommittee September 12, 2023
Oregon Department of Forestry Forest Health Unit
EAB Risk Areas
EAB in Oregon detection map
OSU Extension Service "Forest Foe: How you can help slow the EAB invasion."
US Forest Service introduces CharBoss, a mobile biochar production machine