The amount of forest with problems is only a small fraction of the overall 22 million acres state officials looked at, but it ...

A swarm of destructive wasp-like insects is spreading fast, and it could mean bad news for pine trees, holiday traditions, and your backyard.

In a Swiss pine forest, the treetops are being sprayed with mist in a bid to discover the effect that drier or wetter air has ...

You've heard nuts are healthy, but which pack the greatest nutritional bang? Experts list the healthiest nuts to eat ...

An aggressive hatch of Douglas-fir tussock moth caterpillars is threatening trees, both in national forests and in Santa Fe.

The tree, which is over 4,800 years old, is found in a grove of other trees, but its exact location is kept a secret.

Some cherry and plum trees in the central Ohio area are turning black from a fungal disease. Here's what you need to know.

One such pest, the southern pine beetle, is of concern for southeastern states, particularly the Upstate area of South ...

Trees in tropical forests are dying at an increased rate, with consequences for biodiversity, carbon storage, and the global ...

Will St. Petersburg homebuyers pay more for a property with a garden? Find out in this guide, along with smart tips to ...

In heavily affected areas, up to 30% of beech trees are killed within seven years of contracting beech leaf disease.

After Steiniger came Dick Bator, who was, to put it mildly, a bit of an eccentric. He took his job so seriously that he had a ...