New York State Department of Agriculture and Markets.
Virginia Department of Forestry.
Louisiana State University Agricultural Center. Research and Extension.
New York City Department of Health.
New York Invasive Species Clearinghouse.
Cornell University. Forest Health and Invasive Non-native Forest Pests.
University of New Hampshire. Cooperative Extension; New Hampshire Department of Agriculture, Markets & Food.
New York State Department of Environmental Conservation.
New York Department of Environmental Conservation.
Cornell University. New York State Integrated Pest Management Program.
University of New Hampshire. Cooperative Extension.
Virginia Department of Conservation and Recreation.
South Dakota Department of Health.