Even if the tree is not culled ... didn't account for how climate and genetics interact to alter a pine's risk for disease.

But the trees aren’t dying, said Savannah Ferreira, the forest health specialist for the Vermont Department of Forests, Parks and Recreation. They’re sick with white pine needle disease ...

A mysterious disease that is killing beech trees is spreading across parts of the United States. Scientists say the disease, known as Beech Leaf Disease, has been recorded in Ohio and Pennsylvania ...

Another type of stress, one that torments most other plants, is virtually absent among bristlecone pines: disease. The tree has a dense ... The tallest bristlecone pine is but 60 feet tall ...

The Skipinnish Oak, for instance, hosts diverse lichens such as the rare black-eyed Susan, while the venerable trees of ...

Closely related species, and the diseases they cause ... which causes excessive resin to ooze from pine trees and problems with pine seedlings. We first sequenced its genome 10 years ago, and ...

The best time to trim deciduous trees is typically in the winter months. "Trees are still dormant," says Joe Moussa, owner of ...

While doing my doctoral research, I spent many days tromping around in the middle of a pine forest in Mississippi. The pine ...

but the trees were destroyed before the disease could be positively identified, according to the state entomologist. Victoria Smith, whose office is at the Connecticut Agricultural Experiment ...

As you bend left down the drive at Tullynally Castle, County Westmeath, what looks like a medieval walled town rises to greet ...

These elms are a series of new trees cloned by the University that show promise to be resistant to a deadly disease that has killed thousands of elm trees that traditionally line the boulevards and ...