University of Wisconsin. Sea Grant Institute.
Connecticut Agricultural Experiment Station. Plant Disease Information Office.
University of Connecticut. Department of Plant Science and Landscape Architecture.
University of Wisconsin - Madison.
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.
New York City Department of Health.
University of Tennessee Extension.
University of Alaska - Fairbanks. Cooperative Extension Service.
Invasive Plants Association of Wisconsin.
Wisconsin Department of Natural Resources.
Michigan Emerging Disease Issues.
Michigan's Invasive Species Program.