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

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.

And because the Mountain Ash community is dominated by younger trees, it is now at risk of reburning. Younger trees are highly fire-prone—even those regenerating from the Black Saturday fires of 2009.

All of Iowa's 99 counties confirmed having the ash tree-killing insect, emerald ash borer, the Iowa Department of Natural Resources reported Thursday. As one of the most commonly planted street trees ...

The emerald ash borer's larvae attack trees from within. Beech leaf disease from nematodes attack beech trees; Various fungal ...

As wonderful as the shade of old neighborhood trees can be, certain tree types are especially at risk of an infestation currently plaguing South Carolina.

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Walk through many forests in Indiana today, and you might not notice what is missing until you look up. Ash trees, once a common part of these woodlands, have rapidly disappeared due to the invasive ...

We have to be aware of "Tree Blindness" — the human tendency to overlook trees until they are gone.”— Kenny Anderson ...