Rowan mountain ash, Sorbus aucuparia, is an attractive tree with a rounded canopy, white flowers, and bright orange to red fruit.

In cooler regions with low humidity, one native tree offers stunning blooms with edible fruit beloved by wildlife. Here's how ...

SIOUX FALLS, S.D. (KELO) — The city of Sioux Falls is urging people with ash trees to take action if they’re not treating them for emerald ash borer. Ignoring the problem could spell trouble. Rick ...

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.

Cornell is at the forefront of determining how "invisibility cloaks" and walls of protection may give ash trees hope of revival.