Unknown on Sep 23, 2024

Submitter does not have a specimen

Description of specimen

Suspected Mediterranean Oak Borer. A three-stemmed Oregon white oak was found to have died somewhat suddenly. One of the leaders was completely dead with no leaves. Light brown powdery frass found on trunk of fully dead leader. The two living leaders are in very poor health with browning leaves.

Commentary

I will inspect next week and report back.

Christine Buhl
Sept. 24, 2024, 4:50 a.m.