With their wide-spreading, leafy branches, ash trees are quite popular in the U.S., but they're being seriously threatened by ...

The emerald ash borer is deadly to ash trees—and aggravating for homeowners. Here's how to know if your tree has emerald ash ...

The emerald ash borer has been detected in Portland, Oregon, and the Oregon Department of Forestry is urging residents to ...

Just outside Cottage Grove at the U.S. Department of Agriculture’s Dorena Research Center, scientists are playing a numbers ...

The emerald ash borer has made its way to Portland, posing a threat to 100,000 ash trees in the city, and the Oregon Department of Forestry is working with the public to monitor the spread and ...

Ash trees are dead or dying because of the little iridescent green beetle The emerald ash borer's small size – no bigger than a cooked grain of rice – belies its destructive power. The beetle’s ...

Glen Cove will replace ash trees damaged by the emerald ash borer, an invasive beetle from Asia that has destroyed tens of millions of trees across North America, city officials said. The city will ...

Portland’s tree canopy will not look the same over the next decade. For many residents, the first signs of the emerald ash ...

The look of downtown Dover is changing as tall ash trees are being killed by invasive emerald ash borer beetles.

An invasive, tree-killing pest has made its way to Portland, spelling trouble for the many native ash trees that cool ...

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The City of Vancouver is injecting ash trees with a pesticide as it looks to deal with the invasive emerald ash borer beetle, a species responsible for millions of ash tree deaths across the continent ...