You’re walking along White Rock Creek, surrounded by the dense canopy of green. In that canopy, you see the majestic ash trees. One day, a tree gets removed. Maybe you don’t notice. Then, another gets ...

In 2002 in Michigan, many ash (Fraxinus sp.) trees started to show obvious signs of decline, and after careful inspections, arborists and biologists soon discovered a pest unknown to the U.S. as the ...

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 ...

FARGO — Emerald ash borer has finally made its way to North Dakota. On Aug. 22, the beetle was found in a trap near Edgeley. Forestry experts with the City of Fargo are busy treating healthy ash trees ...

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

Federal funding for public media has been eliminated. Take action now and protect OPB's independent journalism and essential programs for everyone. The beloved characters of James Herriot’s All ...

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

The City of Denver was put on red alert in June, when the emerald ash borer was identified in the city for the first time, following more than a decade of warnings. The emerald ash borer is an ...

The Gazette offers audio versions of articles using Instaread. Some words may be mispronounced. An invasive, wood-boring beetle that is deadly to ash trees has been officially spotted in all 99 Iowa ...

The tree-killing emerald ash borer made significant expansion within Fort Collins and in Colorado in 2025. The insect is now found in more than 20 Front Range cities. This year, the borer was found ...