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.
University of Wisconsin. Sea Grant Institute.
University of Wisconsin - Madison.
Virginia Department of Forestry.
North Carolina Department of Agriculture and Consumer Services. Plant Industry Division. Plant Protection Section.
New York City Department of Health.
Invasive Plants Association of Wisconsin.
Wisconsin Department of Natural Resources.
New York Invasive Species Clearinghouse.
Cornell University. Forest Health and Invasive Non-native Forest Pests.
University of New Hampshire. Cooperative Extension; New Hampshire Department of Agriculture, Markets & Food.
North Carolina Invasive Plant Council.
New York State Department of Environmental Conservation.
New York Department of Environmental Conservation.
Cornell University. New York State Integrated Pest Management Program.
North Carolina Department of Agriculture and Consumer Services.
Wisconsin Department of Agriculture, Trade, and Consumer Protection.
New York State Department of Agriculture and Markets.
University of New Hampshire. Cooperative Extension.
Southeastern Wisconsin Invasive Species Consortium.