Jun. 12—Pennsylvania naturalists are keeping an eye on a disease that has been killing beech trees in the eastern U.S. for more than a decade, but has begun spreading more rapidly in the past three ...

Beech leaf disease is out there once again, decimating beech trees in Massachusetts, as it has in the past. It's a relatively new tree disease, which first appeared in 2012 in Ohio, and has since ...

Map of spread of beach leaf disease This dark banding, visible on beech leaves from below, is a sure sign that beech leaf disease. A few weeks ago a reader suggested I write about beech leaf disease, ...

Beech leaf disease is spreading in Vermont, threatening the state's beech trees. The disease, first detected in Ohio about a decade ago, has now been confirmed in five Vermont counties, according to a ...

Click to share on Facebook (Opens in new window) Click to share on X (Opens in new window) Click to email a link to a friend (Opens in new window) Click to share on LinkedIn (Opens in new window) ...

In just a decade, this unusual disease has spread from Ohio across the Northeast. Scientists are testing treatments, but answers come slowly. Backlit leaves of an American beech tree show dark bands, ...

Brown leaf: Dark bands may remain visible on affected leaves during winter. Photo courtesy of Ontario Ministry of Natural Resources Forestry. (L); Withered leaves: Thick bands of leaf tissue may turn ...

The heat of summer is upon us and what better way to enjoy it than a walk in the cool woods. We have a nice mixed stand of trees that grow along the little river that runs behind the house. There are ...