Pennsylvania’s trees are facing a multitude of threats including fungus, insects, and worms, like the ones that cause beech leaf disease. American chestnut trees once thrived in our region, but 150 years ago a fungus wiped them out. Researchers and advocates are trying to bring them back, but they disagree on how to do it. Plus, we tag along with a crew trying to save hemlock trees from a sap-sucking invasive pest.
A researcher in Ohio was surrounded by hundreds of dead ash trees that the emerald ash borer, a beetle, had wiped out. But in that same forest, she found a lone tree thriving. Could this tree be the key to saving ash from extinction?
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The Last to Leave - A researcher in Ohio was surrounded by hundreds of dead ash trees wiped out by a beetle called the emerald ash borer. But then she found a lone tree thriving, and started looking for answers.
Native Pennsylvania tree battles two diseases that put it at risk for extinction - Beech trees are being attacked by two separate diseases that could devastate the native species, which provides nuts for wildlife.
How a land trust is fighting invasive hemlock woolly adelgid in Allegheny County - Hollow Oak Land Trust is selectively treating hemlock trees with insecticide and hopes to inspire homeowners to do the same.
After GMO program hits snag, what’s the future of restoring American chestnuts? - Researchers and advocates disagree on the path forward for the iconic tree that once provided food for people and wildlife, as well as lumber.
