Jules Ginenthal, Natural Areas Stewardship coordinator at Cornell Botanical Gardens, plants a grafted lingering ash tree ...

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

Cornell is at the forefront of determining how "invisibility cloaks" and walls of protection may give ash trees hope of revival.

Native fungi from forests killed emerald ash borers in lab tests, offering a potential new biological tool to slow the ...

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 ...

Dallas officials warn the emerald ash borer could impact hundreds of thousands of trees, forcing removals while the city works to slow the spread and replant.

This non-native beetle kills ash trees by feeding on the layer beneath the bark, cutting off water and nutrients. Approximately one-third of the trees in Fort Collins are ash trees, making the city's ...

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 ...