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

Q: What becomes of the wood created by the city removing ash trees? Does the emerald ash borer die when the tree is cut? Is it safe to use as firewood? If it is moved does the live bug have the ...

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.

… 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 ...

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 ...

The invasive emerald ash borer, according to the U.S. Department of Agriculture, was first found in the United States in southeast Michigan in 2002. In the decades since, the wood-boring beetle has ...

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 ...

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