A beetle species described as the "most destructive forest pest in the country" is killing Washington County ash trees. Read the full story: https://www.kgw.com/article/news/local/solutions/invasive-emerald-ash-borer-problem-washington-county-forest-grove-solutions/283-61128be3-61b3-43e4-84b1-4ddc85fc1ead Subscribe: null Watch the latest KGW newscast: https://www.kgw.com/watch Get the KGW app: https://kgw.com/appredirect