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Hemlock Woolly Adelgid Resources

Displaying 1 to 20 of 31

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USDA. FS. Northern Research Station.
Select the non-indigenous forest pest to view maps depicting state and county distribution. Produced by: USDA, FS, Forest Health Protection, and its partners.
USDA. FS. Northern Research Station.

Wisconsin Department of Natural Resources.

Nature Conservancy. Don't Move Firewood.
IUCN. Species Survival Commission. Invasive Species Specialist Group.
Maryland Department of Agriculture.

Ohio Department of Agriculture. Plant Health.

Pennsylvania Department of Conservation and Natural Resources.

University of Maryland. Cooperative Extension. Home and Garden Information Center.
See also: Home and Garden Information Center Publications for more factsheets
Cornell University. Cooperative Extension of Suffolk County. Horticulture Diagnostic Laboratory.
See also: Tree and Shrub Insect Pests for more fact sheets.
USDA. FS. Northeastern Area State and Private Forestry.
Provides distribution maps and predicted future range expansion.

Maine Department of Conservation. Maine Forest Service. Forest Health and Monitoring Division.

Vermont Department of Forests, Parks and Recreation. Forestry Division.
Tennessee State Government.
Columbia University. Center for Environmental Research and Conservation.
Pennsylvania State University. Cooperative Extension.