Insects and Spiders - non-native

Red-headed ash borer on Jul 10, 2018

Submitter has sample
EDRR Status: No Response/Action Required

Description of specimen

There are several adults and juveniles/ nymphs infesting my mature vine maple in my yard.
From 3808 NE 24th Ave, Portland. Red headed ash borer.


Red-headed ash borer (Neoclytus acuminatus) is a native woodborer that can attack several common hardwood tree species. Usually the attacks are limited to stressed, dead or dying trees so a chief tactic is to keep landscape trees healthy by deep watering and avoiding damage from lawnmowers, weed eaters, construction equipment, soil compaction, etc. See this guide for more info on control:

For positive ID of red-headed ash borer, please upload photo(s). Thank you for using the state's Hotline system for early detection of priority invasive species!
Wyatt Williams, Oregon Department of Forestry

Wyatt Williams
July 10, 2018, 5:27 p.m.