CHAMPAIGN, Ill. (AP) — The nearly 90-foot-tall green ash tree growing in central Illinois is the largest of its kind in the state, and that makes it worth protecting, a forestry expert says. An ...

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

Green ribbons are turning up on ash trees in Minneapolis, a stark reminder of just how much of the public urban forest is about to be cleared away, either by city foresters or the emerald ash borer.

On a recent January morning, Dix Hills resident Perry Tepper awoke to the loud buzz of machinery outside. He wasn’t surprised; there's construction going on in his neighborhood. But as it continued ...

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 ...

Getting your Trinity Audio player ready... CARBONDALE — Carl Meinecke sidles up to an ash tree and wraps a tape measure around the trunk, gathering both circumference and diameter in one move.

One of the perhaps one million green ash trees in the Great Trinity Forest, photographed Wednesday not far from the Big Spring Preserve in southeast Dallas. Rebecca Slezak / Staff Photographer We need ...

The tiny green insect is likely to tear a path of destruction through Oregon ash, but its late arrival has given the state time to prepare. A couple of weeks ago, Dominic Maze was picking up his kids ...

It’s been at least 15 years since the emerald ash borer arrived and began to destroy ash trees in the Chicago area. Some homeowners who have been treating ash trees with insecticides to fend off the ...