An official website of the United States government.

The .gov means it’s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely.

Home / Invasive Species Resources

Invasive Species Resources

Provides access to all site resources (alphabetically), with the option to search by species common and scientific names. Resources can be filtered by Subject, Resource Type, Location, or Source.

Displaying 1 to 20 of 660

Search Help
Maine Department of Environmental Protection.
In 2008, the purchase of a new sticker for owners of Maine-registered watercraft was automatically combined with the watercraft registration fee. The sticker, which now reads "Stop Aquatic Hitchhikers -- Preserve Maine Waters" and is physically attached to the Maine watercraft registration, has been required since 2002 for all motorized watercraft on inland waters. Owners of non-Maine registered boats will continue to be required to purchase and affix a separate nonresident sticker. 

Adirondack Park Invasive Plant Program.

Maine Department of Environmental Protection.

University of Arkansas. Cooperative Extension Service.

Texas Parks and Wildlife Department.

Cornell Laboratory of Ornithology.
Note: Nesting Behavior

New York Department of Environmental Conservation.

New York Department of Environmental Conservation.

New York Department of Environmental Conservation.

New York Department of Environmental Conservation.

New York Department of Environmental Conservation.

New York State Department of Environmental Conservation.

New York Department of Environmental Conservation.

New York Department of Environmental Conservation.

Cornell University (New York). New York State Agricultural Experiment Station.

University of Arkansas. Cooperative Extension Service.

See also: Common Disease Problems for more fact sheets.
Cornell University. Cooperative Extension of Suffolk County. Horticulture Diagnostic Laboratory.
See also: Tree and Shrub Disease for more fact sheets.

USDA. Animal and Plant Health Inspection Service.

Effective May 11, 2021, the Animal and Plant Health Inspection Service (APHIS) and the New York State Department of Agriculture and Markets (NYS AGM) expanded the European cherry fruit fly (ECFF) quarantine to include all of Monroe County and Wayne County and a small portion of northwestern Ontario County, New York. With this expansion, the ECFF quarantine now includes all of Erie, Monroe, Niagara, Orleans, and Wayne Counties. This action is necessary to prevent the spread of ECFF to non-infested areas of the United States, while maintaining commercial cherry production and marketing within the state. The APHIS website reflects the expansion of this quarantine and contains a description of all the current federal fruit fly quarantine areas.

USDA. Animal and Plant Health Inspection Service.

Effective immediately, the Animal and Plant Health Inspection Service (APHIS) is removing a portion of Harris County within the Braeswood area of Houston, Texas, from citrus canker regulations. The successful partnership between APHIS and the Texas Department of Agriculture (TDA) has resulted in a citrus canker-free status in this area since 2016.

On May 20, 2016, APHIS confirmed the positive identification of citrus canker in two adjacent sour orange trees in a city park in the Braeswood area of Houston, in Harris County, Texas. TDA removed and destroyed both positive citrus canker trees. TDA established an intrastate quarantine area for citrus canker that paralleled the federal citrus canker regulatory requirements specified in 7 Code of Federal Regulations (CFR) 301.75. APHIS completed a comprehensive delimiting survey around the area and found no additional citrus trees positive for citrus canker within the survey area. The removal of this quarantine area is reflected on the APHIS website, which also contains a description of all the current federal citrus canker quarantine areas.