Report #7835 - Report: unknown

unknown on Sep 5, 2025

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter does not have a specimen
EDRR Status: Local expert notified

Description of specimen

D-shaped bore hole, canopy dieback. no other signs. Several other trees showing the same canopy dieback at this point in the season but that is to be expected. I only found one D shaped hole. https://www.inaturalist.org/observations/311976120

Commentary

This site was ground checked Sept 26, 2025 by ODF staff. The tree was located and it did appear to have an exit-hole. But upon investigating, there were no EAB larvae, tunneling or exit holes present on this tree or several others. The site is in a burn scar with signs of tree decline present in ash and many other species, likely due to drought/fire stress. At this time did not find EAB here.

Wyatt Williams
Oct. 6, 2025, 2:59 a.m.

Location

Savanna edge with a currently dry creek running through the west side of the unit. Mixed forest stand comprised of Oregon ash, Douglas fir, Oregon white oak, California black oak, and madrone. understory largely grass at this point in the summer with a shrub component. This unit was burned a couple of years ago. Just south by a couple hundred meters of TNC's Eugene office. On a midslope close to the summit of this hill.

unknown on Sep 5, 2025

Description of specimen

Commentary

Location

Expert Reviewer