Learn More

• To learn more hemlock wooly adelgid detection, biology, and management, click here to view "Early detection of the hemlock woolly adelgid in small northeastern hemlock woodlots," from Cornell Cooperative Extention.

• To learn more about the biology of the hemlock woolly adelgid, click here to view a document produced by the USDA Forest Service.

• To learn more about the life cycle of the hemlock woolly adelgid, click here to view images of the insect’s life stages, prepared by the USDA Forest Service.

• To learn how you can detect, monitor, and assess the severity of a hemlock woolly adelgid infestation, click here to view a handbook prepared by the USDA Forest Service.

• For additional information, visit the New York Invasive Species Research Institute (NYISRI) website.

• View fact sheets from the USDA Forest Service, Northeastern Area and the NYS Department of Environmental Conservation.