Arizona Game and Fish Department.
New state regulations to help prevent the spread of quagga mussels and zebra mussels went into effect in Mar 2010. These regulatory measures, known as "Director's Orders," were authorized by the Aquatic Invasive Species Interdiction Act passed by the Arizona Legislature in 2009. The orders contain a list of aquatic invasive species for Arizona, a list of waters where aquatic invasive species are present, and mandatory conditions for the movement of watercraft.
Washington Department of Fish and Wildlife.
California Invasive Plant Council.
Carolinas Beach Vitex Task Force.
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.
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.
New York Department of Environmental Conservation.