Insects and Spiders - native

unknown on May 5, 2025

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter does not have a specimen

Description of specimen

Oregon Ash tree in sudden decline this year, mostly bare, leaves very small. Photo attached. Unable to examine its trunk due to surrounding blackberries. Signed up for CSWCD class June 6.

Commentary

You aren't close to any known infestation. Canopy decline is an indicator that something is wrong, but we need to see some signs of damage. Stay on the lookout for beetles in the summer.

Tom Valente
May 6, 2025, 8:27 a.m.

I'll be at the CWSCD workshop on June 6th. We can talk about your tree and help you learn how to identify an EAB infestation. Until then you can learn more at OregonEAB.com. The Identification tab under Resources shows you what to look for.

Matt Mills
May 7, 2025, 3:58 a.m.

ODF visited the site and wasn’t able to find any signs of EAB outside of a thinning canopy. There have been recent changes to the adjacent the wetlands, causing water to stand longer and deeper on the property than it used to, perhaps the tree is in decline because of this. None of the other nearby trees looked abnormal.

Wyatt Williams
June 9, 2025, 11:39 a.m.