Emerald Ash Borer (Agrilus planipennis) on Aug 18, 2025
Submitter does not have a specimen
Description of specimen
We called an arborist to do a preventative treatment of the ash tree in our front yard. When they came out, they told us it looked like it was already infested, but at the early stages. Coincidentally, we had found a couple of shiny green beetles in our backyard earlier in the summer.
Thank you for making this report. We have not yet detected emerald ash borer (EAB) in Gresham, or Multnomah County. If your tree is infested with EAB we would want to confirm it with trained entomologists. Please upload pictures of the entire tree, up close photo of the leaves, and any beetles, damage, d-shaped exit holes, or bark splits. You can learn what the exit holes and bark splits look like at https://oregon-eab-geo.hub.arcgis.com/pages/identify#destination2.
Once we get a look at those pictures we can advise you further about the best course of action for your tree. In some cases, an infested tree can still be effectively treated. You can learn more about EAB treatment here https://oregon-eab-geo.hub.arcgis.com/pages/eab-management#treatment
Matt Mills
Aug. 20, 2025, 8:26 a.m.
Anya Moucha
Sept. 24, 2025, 7:04 a.m.