A new tree disease has spread in forests in Massachusetts, joining invasive pests and climate change as top priorities for foresters to address. The state has found beech leaf disease in more than 90 ...

What would you say is the greatest threat to the survival of our trees? Deforestation? Climate change? How about disease? Many of us don't really think about trees getting sick or infected but pests ...

We love the vibrant colors of maple trees in the fall. These deciduous beauties bring not only great color but also a recognizable leaf shape and (our favorite) whirlybird seeds that helicopter their ...

A deadly oak disease that also affects redwoods and other trees has spread to a far Northern California tribe's lands.

A new study found differences at the cellular level of leaves from infected Beech trees -- variations that may account for tree mortality. Beech trees provide food for animals, timber for wood ...

Anthracnose, a fungal disease affecting maple trees, is prevalent in Greater Columbus due to the cool, wet spring. The disease causes brown leaf spots, curling leaves and premature leaf drop, but ...

The Director of the Citrus Pest and Disease Prevention Division has been preparing for years to tackle a deadly citrus disease that is beginning to spread across California. Citrus Greening, or ...

HARRIS COUNTY, Texas — Scientists and researchers are sounding the alarm as a tree-killing disease spreads through the Greater Houston area. The disease commonly known as ‘Laurel Wilt’ is spread by ...

A team of two tree officers is being given extra resources to help remove trees and make them safe.

A new disease affecting aspen trees has been discovered in the N.W.T. The first case of aspen running canker in the territory was confirmed by field crews from Wilfrid Laurier University and the N.W.T ...

Add Yahoo as a preferred source to see more of our stories on Google. U.S. Army Corps of Engineers Forester Andy Meier inspects an elm tree on the Mississippi River for possible signs of Dutch elm ...

Tree cutting crews chop down American elms at the Castine golf course on Monday, July 25, 2022, after they had been infected with Dutch elm disease. Credit: Courtesy of Don Tenney A lethal tree ...