According to Science Daily, the pest could kill most of the region's hemlock trees within the next decade.
The Hemlock woolly adelgid has destroyed most of the hemlocks within the park.
Woolly Mammoth Theatre Company | Woolly mammoth | woolly mammoth | pineapple gall adelgid | Hemlock woolly adelgid | Hemlock Society | Gall adelgid | Cooley's spruce gall adelgid | Balsam woolly adelgid |