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

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

Arborist Greg Ranallo and one of the ash trees he has recently treated against the emerald ash borer in Shelburne on Friday, July 19. Ranallo favors treating the trees to curb the spread of the ...

Glen Cove will replace ash trees damaged by the emerald ash borer, an invasive beetle from Asia that has destroyed tens of millions of trees across North America, city officials said. The city will ...

The Common Ash tree is one of the most recognizable species in the UK, reaching heights of up to 30 meters. In this video, we ...

Ash trees are dead or dying because of the little iridescent green beetle The emerald ash borer's small size – no bigger than a cooked grain of rice – belies its destructive power. The beetle’s ...

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

MANKATO — Take a walk outside today. Look left, look right and then look up. What do you see? Or more importantly, what do you not see? A major urban forestry initiative is reshaping Mankato’s tree ...

MOORHEAD — The emerald ash borer has reached Moorhead. This wood boring insect, native to Asia, has killed hundreds of millions of ash trees throughout 36 states since it was first discovered in the U ...

Research entomologist Jian Duan cuts away bark from ash trees in search of emerald ash borers, an invasive species that has been killing off the trees. They’re looking particularly for those affected ...