Montana State University.
The Center for Invasive Species Management closed in 2015. Archives of relevant materials are available here.
Connecticut Agricultural Experiment Station. Plant Disease Information Office.
University of Connecticut. Department of Plant Science and Landscape Architecture.
University of Connecticut. Connecticut Invasive Plant Working Group.
New York City Department of Health.
University of Tennessee Extension.
Maryland Department of Natural Resources.
New York Invasive Species Clearinghouse.
Cornell University. Forest Health and Invasive Non-native Forest Pests.
North Dakota Department of Trust Lands.
Nevada Department of Agriculture.
New York State Department of Environmental Conservation.
New York Department of Environmental Conservation.
Cornell University. New York State Integrated Pest Management Program.
North Dakota Department of Agriculture.
New York State Department of Agriculture and Markets.
Tennessee Department of Agriculture.
Montana Fish, Wildlife, and Parks.
Tennessee Wildlife Resources Agency.
Tennessee Invasive Plant Council.