Hemlock woolly adelgid was first detected in New Hampshire in 1999. Since 2000, the New Hampshire Department of Agriculture, Markets & Food and the New Hampshire Department of Resources and Economic Development have maintained a joint quarantine on the movement of hemlock nursery stock and hemlock forest products into the state. The below links provide more information on hemlock woolly adelgid, its history in the US and in New Hampshire, control measures, and the specifics of the Hemlock Woolly Adelgid Exterior Quarantine.
Portable Document Format (.pdf). Visit nh.gov for a list of free .pdf readers for a variety of operating systems.
NH Department of Agriculture, Markets and Food
Mailing: PO Box 2042, Concord NH 03302 -2042
Physical: 25 Capitol Street, Second Floor, Concord, NH 03301
(603) 271-3551 | fax: (603) 271-1109