Insects and Spiders - native

Western Cedar Borer (Trachykele blondeli) on May 31, 2024

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter has sample

Description of specimen

Small green bug with bright bronze sparkles

Commentary

Thank you for your report! This is not EAB. It's a native member of the Metallic Wood-boring beetle family, the Western cedar borer, Trachykele blondeli. These beetles are larger and less slender than EAB. They are not tree killers.

There are a number of iridescent green look-alike beetles in Oregon that are not pests. I am attaching a link to the ODA EAB webpage with some photos of other Oregon insects that could be mistaken for EAB

https://www.oregon.gov/oda/programs/IPPM/SurveyTreatment/Documents/EABLookAlikes.pdf

Scroll down to find the EAB Response Plan for Oregon and more information about how to recognize EAB attack, so that you can monitor your ash trees.

Thanks for being on the lookout!

Tom Valente
June 3, 2024, 1:33 a.m.