Genes in green ash trees that may confer some resistance to attacks by the emerald ash borer express themselves only once the tree detects the invasive beetle's feeding, according to Penn State ...

Leaves – Similar to Fraxinus americana, but leaflets often narrower and always with some serration; opposite, deciduous, pinnately compound with 7-9 3-4” leaflets; ovate with smooth margin; more or ...

"Lingering ash." That's what the U.S. Forest Service calls the relatively few green and white ash trees that survive the emerald ash borer onslaught. Those trees do not survive by accident, and that ...

SALISBURY — Pulling back the flaking bark of the green ash tree with the ease of someone peeling an orange, Jay Bolin exposes the evidence he expected to find. “Look at those D-shaped exit holes,” he ...

An emerald ash borer infestation doesn’t have to mean doom for your ash trees if you catch these signs early. Emerald ash borers are tiny invasive beetles from Asia that target ash trees and related ...

Winter isn’t the ideal season for pruning trees in Upstate New York, but it’s the best time to cut scion or twigs from ash trees in parts of the state where the species has been all but wiped out.