University of Wisconsin. Sea Grant Institute.
California Invasive Plant Council.
Carolinas Beach Vitex Task Force.
University of Wisconsin - Madison.
New York State Department of Agriculture and Markets.
University of California Cooperative Extension. Napa County.
California Department of Food and Agriculture. Plant Health Division.
University of California - Berkeley.
North Carolina Department of Agriculture and Consumer Services. Plant Industry Division. Plant Protection Section.
New York City Department of Health.
University of California - Riverside. Entomology.
University of California - Riverside. Center for Invasive Species Research.
Invasive Plants Association of Wisconsin.
Wisconsin Department of Natural Resources.
California Department of Food and Agriculture.
New York Invasive Species Clearinghouse.
Cornell University. Forest Health and Invasive Non-native Forest Pests.
University of California. Division of Agricultural and Natural Resources. Cooperative Extension.
North Carolina Invasive Plant Council.
New York State Department of Environmental Conservation.