The following regional groups are working to control purple loosestrife:
VT Department of Environmental Conservation
Wetlands Office, 103 S. Main St, Bldg 10 N.
 Waterbury, VT 05671-0408
(802) 241-3770

NH Dept. of AgricultureDiv. of Plant Industry
State Lab Building Lab D, 6 Hazen Drive
Concord, NH03301
(603) 271-2561

NH Department of Environmental Services
Biology Bureau, 6 Hazen Drive
Concord, NH03301
(603) 271-3503

Connecticut River Joint Commission
(603) 826-4800

Silvio O. Conte Fish & Wildlife Refuge
(413) 863-0209

Upper Valley Purple Loosestrife Coalition:

Conservation Commissions of
Canaan, Claremont, Enfield, Hanover,
Hartford, Haverhill, Lyme, Norwich, Orford,
Plainfield, Weathersfield, West Windsor
Garden Club of Hanover
Garden Club of Quechee
Canaan Bird and Garden Club
Planning Board of Springfield, VT
Hanover Conservation Council
LWV of the Upper Valley
PO Box 726
Hanover, NH 03755