Hemlock Woolly Adelgid (HWA) are invasive insects of serious concern to all hemlock populations in the Eastern United States. The need to protect unaffected populations requires very careful handling and disposal of infected tree materials. The procedure may include notifying local and/or state officials and may be determined by your state's Department of Environmental Conservation. (New York state protocol is available here)

Contact your county's cooperative extension office for information on the local regulations and procedures. You can find help navigating to your state's cooperative extension system from this guide. Once you have found your State's cooperative extension system, you can select your county for contact information.

If you have detected HWA on your property, an excellent Guide to HWA Management for Landowners is available from Cornell University's New York State Hemlock Initiative.

Courtesy of NYBG Plant Information Service