It would cost up to $4 million to cut down Milbank’s ash trees, after state and city officials detected a beetle last summer that threatens to decimate the northeastern South Dakota city’s tree canopy ...

Scientists will spend the next three years looking at the best, environmentally-friendly, ways to deal with the pest.

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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 Mi’kmaq tribe and a master basketmaker. His blue eyes are kind and frequently ...

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 ...

Emerald ash borers (Agrilus planipennis) are one of those invasive pests you should always kill on sight. Also known as EAB, they are responsible for the destruction of millions of ash trees in North ...

The emerald ash borer, a tiny yet destructive invasive beetle known for wiping out ash trees on a large scale, has been confirmed at six new locations in northwest Oregon. First discovered in Forest ...

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In 2006, Kathleen Knight was walking through a forest in northwest Ohio. She's a researched ecologist with the U.S. Forest Service. All around her were big, beautiful ash trees, tall trunks with lush ...