An emerald ash borer larva chews through the cambium layer of an infested ash tree in Armstrong, located in Emmet County. A buildup of feeding tunnels cut off the vascular or “plumbing system" of a ...

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 ...

The emerald ash borer has been confirmed in North Dakota, the latest among dozens of states where the dreaded, tree-killing insect has spread, state officials said Thursday. Adult beetles were ...

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 ...

NASHVILLE, Tenn. (WKRN) – The Emerald Ash Borer was discovered in Tennessee in the Knoxville area in 2010. 12 years later, the invasive species has spread from East to West, killing ash trees in its ...

Up close, the emerald ash borer is a strikingly beautiful insect. It's also a dangerous pest. The metallic green beetles entered the United States from northeast Asia in the 1990s, likely hitching a ...

NORTH ADAMS — “It’s awful, just terrible,” said Thomas Moore, owner of a Williamstown tree service, The Tree Guy. “We’re losing trees like crazy. It’s like a perfect storm.” That’s word from the front ...

A decade ago, when the emerald ash borer first was discovered in the U.S., a confirmed outbreak was considered a death sentence for every ash tree for miles around. The insect that came to the U.S.

ST. PETER — The invasive insect species emerald ash borer has been found in St. Peter, city officials announced Thursday. St. Peter Public Works Director Pete Moulton said the city is working with the ...

While the emerald ash borer has only officially been found in three trees on the southwest side of Nest Lake in Kandiyohi County, the Minnesota Department of Agriculture is warning residents around ...

The tree-killing emerald ash borer has been confirmed in Dickinson and Humboldt counties for the first time, leaving only eight counties in Iowa where the pest has not been found since it was first ...

Stephen Swanson is a web producer at CBS News Minnesota. Stephen was a floor director for a decade before moving to the WCCO-TV newsroom in 2011, where he focuses on general assignment reporting. ST.