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.

You are here Back to top

Invasive Species Resources

Displaying 141 to 160 of 463

Search Help

USDAAPHISPPQCPHST. Identification Technology Program.

New York City Department of Health.
Cornell University. Cooperative Extension of Suffolk County. Horticulture Diagnostic Laboratory.
See also: Tree and Shrub Insect Pests for more fact sheets.
Cornell University Cooperative Extension. Oneida County.
See also: Home and Garden - Weeds for more fact sheets
University of California - Riverside. Entomology.
Los Angeles County West Vector and Vector-Borne Control District (California).
University of California - Berkeley. Cooperative Extension; USDA. Forest Service.
University of California - Riverside. Center for Invasive Species Research.
North Dakota State University. Extension Service.
Publication W1132
North Dakota Game and Fish Department.
View current information on the locations of curlyleaf pondweed, Eurasian watermilfoil, and zebra mussels in North Dakota waters.
New York Department of Environmental Conservation.
Bishop Museum. Hawaii Biological Survey; University of Hawaii.
Columbia University. Center for Environmental Research and Conservation.
Columbia University. Center for Environmental Research and Conservation.
Columbia University. Center for Environmental Research and Conservation.
Columbia University. Center for Environmental Research and Conservation.
Columbia University. Center for Environmental Research and Conservation.
Columbia University. Center for Environmental Research and Conservation.
Columbia University. Center for Environmental Research and Conservation.