Carolina Hemlock Populations: Isolated and Imperiled

Hemlocks are under attack. U.S. Forest Service scientists and their partners are working to save the native conifers from the hemlock wooly adelgid (HWA), an invasive insect from Japan. Carolina hemlock (Tsuga caroliniana) trees can survive HWA infestation for a decade or more but often die within four years. Carolina hemlocks grow in tiny, isolated…  More