Associated Press How do I know if I have ash trees on my property?There are four species of ash native to the eastern United States white, green, black and blue. Branches and leaves always grow in ...

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

Lea Nash was talking to her neighbor about Oregon's newest pest when one flew into her neck — or so she thought. Standing near their Eugene homes close to River Road, the bug bounced off her neck and ...

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 ...

MaMA has so far identified more than 230 lingering ash trees. Most are from the Hudson Valley region, ground zero for the ...

Along the St. Louis River, more than 60,000 trees will be planted to replace dead ash trees and protect the estuary. With dead ash trees all around, Nathan Wagner, of Janesville, Wis., a member of ...

Jennifer Killian knew the inevitable was coming. She just didn’t know how soon. As an urban forester for the city of Corvallis, her biggest fear was that the emerald ash borer, an invasive beetle, ...

A three-story mature ash tree hangs over Sara Turnquist’s property in Iowa City. It has shaded her children’s play dates, meetups with neighbors and driveway basketball games for years. The ...

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 ...

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 ...