Hemlocks & HWA

This page is being built. Check back later to see new content! Click on any of the following categories to learn more: Hemlocks World-wide distribution Eastern hemlock (Tsuga canadensis) Carolina hemlock (Tsuga caroliniana) The Importance of Hemlocks Pests & Pathogens…

The Importance of Hemlocks

The Importance of Hemlocks

At least ten distinct species of hemlock exist in the world today. A new species, Tsuga ullengensis which occurs on Ulleung Island in Korea was delineated in 2017 by Holman et al. ¬†All Tsuga species occur at roughly the same…

Factors Threatening the Appalachian Hemlock

Factors Threatening the Appalachian Hemlock

The nearly invisible hemlock woolly adelgid (HWA) is primarily to blame for the severe decline of eastern and Carolina hemlock currently taking place in the eastern forests of the United States. There are other factors, however, that exacerbate the HWA…