ST. PAUL -- With the threat of emerald ash borer potentially killing ash trees in Minnesota, homeowners must begin planning for the future and plant a more diverse selection of tree species in their ...

Kris Dullmer of Ash Tree Solutions, right, injects an insecticide into an ash tree named Big Jim in the Catamount Community Forest to combat the emerald ash borer in Williston on Tuesday, June 25.

ITHACA, N.Y. (WBNG) -- Cornell University is developing a new variety of ash tree that could be resistant to a particularly destructive pest. The university is the first propagation center in the ...

Emerald ash borers can kill ash trees in a short period, making identification of infestation and immediate treatment ...

Add Yahoo as a preferred source to see more of our stories on Google. The emerald ash borer (Agrilus planipennis) was first identified as an invasive species in the US in 2002. It is now found in over ...

NEW YORK (AP) — Five prominent species of ash tree in the eastern U.S. have been driven to the brink of extinction from years of lethal attack by a beetle, a scientific group says. Tens of millions of ...

Waterloo is partnering with the Iowa DNR to replace about half of the trees that were lost to the emerald ash borer in the past decade. The city will be making one type of apple tree and three species ...

Two new pests in the Willamette Valley could decimate trees and worsen the ‘urban heat island’ effect that makes some neighborhoods hotter than others For years, Portland area politicians have ...

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Each strip of wood in Richard Silliboy’s hands started as a year of an ash tree’s life. Silliboy, 79, is a member of the ...

More communities are pushing for a wide variety of trees to protect their canopies against disease and other risks. OVERLAND PARK, Kansas — Each fall, as temperatures drop, people in this suburb can ...