The Hemlock whistles softly to itself.”–Naturalist and botanist Donald Culross Peattite Known as the state tree of Pennsylvania, the backbone of the nineteenth century hide-tanning industry, and a ...

poses a significant threat to eastern hemlock forests in North America. This pest feeds on the sap of hemlock trees, leading to tree decline and mortality. As HWA spreads, it disrupts the ...

Hemlock woolly adelgid poses a significant threat to Eastern Hemlock trees in Michigan — an infestation can kill a large, otherwise healthy tree in less than a decade. Properties within 10 miles ...

The Hemlock Woolly Adelgid (HWA) is an aphid-like insect that feeds mainly upon Hemlock tree species. HWA was introduced into the eastern United States from Japan in 1951 by the import of infected ...

A Shenandoah National Park employee was honored last month for his work in the establishment of biocontrols to save eastern hemlock trees. Dale Meyerhoeffer was the recipient of a Director Award ...