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U.S. Department of Agriculture
National Invasive Species Information Center
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Invasive Species Resources

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A Brief Guide to Kentucky's Non-Native, Invasive Species, Common Weeds, and Other Unwanted Plants (PDF | 4.7 MB)
Louisville Water Company.
Africanized Honey Bees in Oklahoma
Oklahoma State University. Entomology & Plant Pathology.
Alabama Aquatic Nuisance Species: Venomous Lionfish
Alabama Cooperative Extension System.
All About Birds - European Starling
Cornell Laboratory of Ornithology.
Note: Nesting Behavior
Anthracnose of Flowering Dogwood (PDF | 424 KB)
Cornell University. Cooperative Extension of Suffolk County. Horticulture Diagnostic Laboratory.
See also: Tree and Shrub Disease for more fact sheets.
AQUAPLANT - Alligator Weed
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
AQUAPLANT - Chinese Tallow
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
AQUAPLANT - Common Reed
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
AQUAPLANT - Curly-Leafed Pondweed
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
AQUAPLANT - Egeria
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
AQUAPLANT - Eurasian Watermilfoil
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
AQUAPLANT - Giant Reed
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
AQUAPLANT - Giant Salvinia
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
AQUAPLANT - Water Hyacinth
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
AQUAPLANT - Water Lettuce
Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
Aquatic Plants and Algae: Curly-Leaf Pondweed
Pennsylvania State University. Cooperative Extension.
Aquatic Plants and Algae: Eurasian Water Milfoil
Pennsylvania State University. Cooperative Extension.
Asian Carp in Alabama

Alabama Department of Conservation and Natural Resources.
Asian Clams - Lake George Fact Sheet No. 53 (Feb 2014) (PDF | 143 KB)
Fund for Lake George (New York).
Asian Longhorned Beetle, Anoplophora glabripennis
Oklahoma State University. Entomology and Plant Pathology.