USDA. Natural Resources Conservation Service.

Compiles and provides information about Federal and State Noxious Weed Lists, and weeds and introduced plants found in the United States by scientific and common name.

U.S. Bureau of Land Management. Office of Public Affairs.

Information about the management of weeds on public lands.

Oregon State University.

A handbook of weed control including integral weed management and biological control.

USDA. Animal and Plant Health Inspection Service.

Information about activities to prevent the introduction of non-native invasive plants and the spread of newly introduced invasive plants within the United States.

Cornell University. Weed Ecology and Management Laboratory.

Information about major weeds, and weed management techniques for organic production.