Insects and Spiders - native

Western Cedar Borer (Trachykele blondeli) on Aug 21, 2022

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter has sample

Description of specimen

half inch long iridescent green beetle


This is western cedar borer. It is not of concern as it's native and attacks dead and dying trees - often drought-stressed arborvitae in sun-exposed lots. Emerald ash borer is smaller and thinner than this beetle. 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

Thanks for being on the lookout!

Josh Vlach
Aug. 22, 2022, 8:42 a.m.