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

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Ask a Gardening Expert

University of Maryland. Cooperative Extension. Home and Garden Information Center.

Have a plant or pest question? Questions from Maryland and the District of Columbia are answered by Home and Garden Information Center’s Certified Professional Horticulturists. If you are located outside of these areas, you will be asked to enter your state and county. Your question will be forwarded to the appropriate extension expert.

Minnesota - Contact an Expert (Aquatic Invasive Species)
Minnesota Department of Natural Resources.
Minnesota - Contact an Expert (Terrestrial Invasive Species)
Minnesota Department of Natural Resources.
Oregon - Ask about Agriculture
Oregon Department of Agriculture.
Technical Services Sections and Programs - Weed and Pest Program
Wyoming Department of Agriculture.