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

An invasive beetle species wreaking havoc on trees in Prince George?s County could spread to other parts of Maryland, officials said. The emerald ash borer kills ash trees by feasting on their inner ...

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 ...

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

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 ...

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 ...

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 ...

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 ...

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, ...

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 ...

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 ...