![]() The Oregon Invasive Species Council – made up of representatives from the state’s natural resource agencies, the Confederated Tribes of the Umatilla Indian Reservation, Oregon State University, Portland State University and various conservation groups – has had a plan since 2021 to confront the beetles. They say it’s possible that some could survive in places where in winter temperatures plunge to –22 degrees Fahrenheit. Forest Service estimate that the beetles will eventually decimate ash trees throughout most of North America. ![]() The group said the beetles have killed hundreds of millions of ash trees in 36 states and have the potential to cause local extinctions of the trees if they aren’t stopped. The Emerald Ash Borer Information Network, a consortium of scientists from universities and state and federal natural resource departments, has called it North America’s most destructive forest pest. The beetles pose a major threat to forests which could be turned into grasslands and shrublands without native ash trees. They have destroyed ash trees across the country but this is the first time they’ve been spotted west of Colorado. ![]() The Oregon Department of Agriculture confirmed Monday that emerald ash borers, an invasive beetle whose larvae kill ash trees by burrowing into their bark, were discovered near a parking lot in Forest Grove about 25-miles west of Portland. A Portland biologist recently found an iridescent bug with the potential to wipe out Oregon’s ash trees, marking the first sighting on the West Coast.
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