There’s a tree killer on the loose in Oregon, and nobody knows how to stop it. An invasive green beetle called the emerald ash borer arrived in the Midwest from Asia, and it’s killed over 100 ...

In environmental news it’s Emerald Ash Borer awareness week and the Oregon Department of Forestry is working to slow the ...

Dominic Maze, a City of Portland biologist, discovered on June 30 that Oregon is facing an impending ecological disaster. Sitting on his truck tailgate and waiting for his kids to finish a day of ...

One of the most destructive invasive insects in the United States has been detected in three more Oregon counties this summer, which could be bad news for the state’s ash trees. Federal and ...

Upon investigation by ODF Invasive Species Specialist Wyatt Williams, he said he found several Oregon ash trees that showed a marked decline. Williams also investigated an area near Butte Creek ...

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 ...

Since 2019, scientists at Penn State's Louis W. Schatz Center for Tree Molecular Genetics focused research efforts on Oregon ash (Fraxinus latifolia), a species that plays a critical role in the ...

Dr. Max Ragozzino with the Oregon Department of Agriculture held up an ash tree branch, pointing to the holes on one side. “In a sample like this, each of these little de-shaped exit holes is ...

Damage to a tree caused by emerald ash borers in Marion County (ODF) The Yamhill County beetle was found in a trap near Gaston, just seven miles away from where Oregon’s first emerald ash borer ...