PITTSBURGH — An invasive fungus is wreaking havoc on local oak trees. Oak wilt disease is fast-moving, killing some trees in less than a year. Local experts showed Channel 11′s Lisa Sylvester what to ...

Learn how to identify, prevent, and treat powdery mildew with this guide. Discover organic and chemical treatment options, as well as management strategies for long-term control.

A group of young cedar trees infected with blight - N. Mitchell/Shutterstock There's nothing quite as majestic and imposing as a fully-grown cedar tree with its broad horizontal branches and fragrant ...

Spruce bark beetles don’t just tolerate their host tree’s chemical defenses—they actively reshape them into stronger ...

Preventing fungal lawn diseases through proper watering practices is crucial, as treatment only suppresses the issue. Summer weeds are emerging, and prompt removal is recommended to prevent future ...

LITTLE ROCK — The sound of raindrops on tree leaves and the little greenish-brown pellets on the sidewalk are related to a common summertime phenomenon — leaf-hungry caterpillars. “Leaf-devouring ...

Pat McElhenny, Pennsylvania Stewardship Manager at the Nature Conservancy, explains one of two diseases impacting beech trees. Beech trees are facing extinction. "When you say northern hardwood, that ...

The aggressive Redbay Ambrosia beetle is no bigger than Abraham Lincoln’s nose on a penny, but over the last two decades, the invasive insect has managed to kill more than 500 million trees in North ...

It’s not just the lodgepole pines that are dying in the Colorado mountains. Thirteen percent of aspen trees in the state are now affected by Sudden Aspen Decline, which is caused by disease and ...

There's nothing quite as majestic and imposing as a fully-grown cedar tree with its broad horizontal branches and fragrant ...