When 86-year-old Jeanne Somers contacted Public Investigator in November about an emerald ash borer infestation in her neighbor's yard, a 70-foot dead ash tree had just fallen across her driveway. She ...

Winter isn’t the ideal season for pruning trees in Upstate New York, but it’s the best time to cut scion or twigs from ash trees in parts of the state where the species has been all but wiped out.

The emerald ash borer, a tiny yet destructive invasive beetle known for wiping out ash trees on a large scale, has been confirmed at six new locations in northwest Oregon. First discovered in Forest ...

The ash trees in the Columbia park are brittle and at risk of falling after dying from infestation by the emerald ash borer.

On Wednesday, the Oregon Department of Forestry announced that the emerald ash borer has now been found in the Hazelwood neighborhood in East Portland and five other new sites in the north Willamette ...

Braik's Tree Removal employees work to cut limbs off a dying tree on Lakeview Street in Centralia. The city of Centralia’s streets have been lined with ash trees for generations. But now, a small ...

… but our independent journalism isn’t free to produce. Help us keep it this way with a tax-deductible donation today. In 2009, an invasive tree pest was discovered on an ash tree in St. Paul. This ...

Portland’s urban foresters are girding for the impending destruction of the city’s ash trees by the emerald ash borer. The beetle—green, shiny, and smaller than a thumbnail—has been found in the four ...

A Cornell and Nature Conservancy 'Trees in Peril' conservation project is propagating ash trees resistant to emerald ash borer. If successful, the long-term project looks to reintroduce resistant ...