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USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
See also: Hemlock Woolly Adelgid for more resources
National Plant Diagnostic Network.
You can become a more effective First Detector by familiarizing yourself with invasive target pests and pathogens known to exist in the U.S. If you think you have encountered one of the species or disease complexes listed, report its presence.
Wisconsin Department of Natural Resources.
Pennsylvania Department of Conservation and Natural Resources.
Maine Department of Conservation. Maine Forest Service. Forest Health and Monitoring Division.