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Invasive Species Resources

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South Dakota State University. Agricultural Experiment Station; Cooperative Extension Service.
Ohio State University. College of Food, Agricultural, and Environmental Sciences.
University of Kentucky. College of Agriculture.
University of Kentucky. Cooperative Extension Service.
See also: Woody Ornamentals for more fact sheets.
University of Kentucky. College of Agriculture, Food, and Environment. Entomology.
University of Idaho. Extension.
Ohio State University. Extension.
University of Idaho Extension.
This pocket guide has color photographs of all the weeds on Idaho's official noxious weeds list. Inside find maps showing each weed's distribution by county, leaf shape illustrations to aid in identification, and features to help distinguish the weeds from similar-looking plants.
Ohio State University. Extension.
University of Idaho. Extension.
University of Kentucky. Entomology.
University of Kentucky. Cooperative Extension Service.
University of Kentucky. College of Agriculture, Food, and Environment. Entomology.
University of Delaware. Cooperative Extension.
See also: Weed Management Guides for more species