PENNSYLVANIA — A highly invasive and destructive insect has surfaced for the first time in Pennsylvania, raising concerns ...

Spongy moth caterpillars are wreaking havoc in wooded lots and forests across Pennsylvania. But the good news is populations appear to be dwindling. It’s the caterpillar stage of the spongy ...

Spongy moth egg mass surveys help determine which areas require treatment. Female moths lay tan egg masses in easily identifiable clusters, with each mass containing anywhere from 100 to 1,500 eggs.

This year, DCNR plans to treat approximately 75,000 acres, primarily in northeastern and central Pennsylvania, and PGC plans to treat about 38,000 acres. The aggressive spongy moth treatment ...

Pennsylvania’s Department of Conservation and Natural Resources wants forest owners to help fight spongy moths — formerly known as gypsy moths. Spongy moths pose a serious threat to oaks ...