An invasive insect has laid waste to an estimated 100 million ash trees across the U.S. Now Oregon foresters are taking pre-emptive steps to limit the bug’s impact. The emerald ash borer is a metallic ...

PORTLAND, Ore. (KOIN) – Oregon is up against a tiny opponent that could cause massive ecological damage: the emerald ash borer. The invasive insect, which is considered the most destructive forest ...

TANGENT, Ore. — The Calapooia River flows past fields of bucolic farmland in the Mid-Willamette Valley where Don Wirth walked over to inspect a fallen ash tree along the stream bank. Wirth, whose ...

There is no evidence of North America's most destructive forest pest in Willamette Mission State Park. Ryan Sevey, a natural resource specialist with the Oregon Parks and Recreation Department, spent ...

The emerald ash borer, an invasive beetle that’s already killed millions of trees across the country, is spreading in Oregon. The beetle was first detected in Washington County, near Forest Grove, in ...

The tiny green insect is likely to tear a path of destruction through Oregon ash, but its late arrival has given the state time to prepare. A couple of weeks ago, Dominic Maze was picking up his kids ...

Do you have ash in your yard or neighborhood? Oregon experts discovered the invasive emerald ash borer in Forest Grove in late June. The emerald ash borer, originally from Asia, is predicted to have ...

SALEM, Ore. (KTVZ) – Oregon Department of Forestry staff recently completed an unprecedented effort to collect seeds from populations of Oregon ash (Fraxinus latifolia) trees throughout the Oregon ...

Jennifer Killian knew the inevitable was coming. She just didn’t know how soon. As an urban forester for the city of Corvallis, her biggest fear was that the emerald ash borer, an invasive beetle, ...