This mean, green, tree-destroying machine might be coming to your area — if it isn't already there. The emerald ash borer, native to Asia, was first spotted in the U.S. near Detroit in 2002. It's ...

One of the three wasp species the state's Division of Forests and Lands uses are tied to a tree during their release so they can emerge in their own time. Earlier this summer, during a scheduled tree ...

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

One of the most destructive invasive insects in the United States has been detected in three more Oregon counties this summer, which could be bad news for the state’s ash trees. Federal and state ...

An exotic beetle is chomping on trees in the Upstate, and the damage it is causing to the environment may be inevitable. The critter has even earned the title of being "one of the worst invasive pests ...

SOUTHWICK — Glowing with a sparkling green iridescent shell, it’s just about the prettiest beetle one might ever see, and it’s a killer…of any ash tree where it lays eggs. “They are here,” said ...

On an early summer day in 2016, entomologist Jian Duan arrived at a nondescript office building in north Houston to deliver some bad news—and some good. Texas forestry officials had notified Duan a ...

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

TANGENT, Ore. — The Calapooia River flows past fields of bucolic farmland in the Mid-Willamette Valley where Don Wirth walked over to inspect a fallen ash tree along the stream bank. Wirth, whose ...

Jeanne Somers has lost thousands of dollars and hours of strife over an emerald ash borer infestation in her neighbor’s yard. Emerald ash borer beetles, an invasive species that kills ash trees by ...

Researchers studying ash trees in the western U.S. have discovered a set of genetic variations that could protect the species from a devastating threat sweeping across the continent, according to a ...