Connecticut Agricultural Experiment Station. Plant Disease Information Office.
University of Connecticut. Department of Plant Science and Landscape Architecture.
Michigan Department of Agriculture and Rural Development.
Michigan Department of Natural Resources.
Louisiana State University Agricultural Center. Research and Extension.
University of Connecticut. Connecticut Invasive Plant Working Group.
University of Guam. College of Natural and Applied Sciences. Research and Extension.
New York City Department of Health.
University of Tennessee Extension.
University of Alaska - Fairbanks. Cooperative Extension Service.
District of Columbia Department of Energy & Environment.
Association of Fish and Wildlife Agencies.
Provides lists of sites for governmental members (U.S. state and territorial fish and wildlife agencies), North American members, affiliate members, and contributing members.
Michigan Emerging Disease Issues.
Michigan's Invasive Species Program.
New York Invasive Species Clearinghouse.