Washington Native Plant Society.
Pennsylvania State University. Cooperative Extension.
San Mateo County Department of Agriculture/Weights and Measures (California).
University of California - Riverside. Center for Invasive Species Research.
Orange County Vector Control District (California).
See also: Information Bulletins on other vectors/pests
San Diego Natural History Museum.
Alabama Cooperative Extension System.
Auburn University (Alabama). College of Agriculture. Department of Entomology and Plant Pathology.
Southeast Exotic Pest Plant Council.
Alabama Invasive Plant Council.
Pacific Biodiversity Institute (Washington).
North Dakota Department of Agriculture.
North Dakota Game and Fish Department.
USDA. FS. Lake Tahoe Basin Management Unit.
Pennsylvania Fish and Boat Commission.
Scroll to view list of aquatic species banned in Pennsylvania.