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Invasive Species Resources

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Washington Native Plant Society.
Pacific Biodiversity Institute (Washington).
Wisconsin Department of Agriculture, Trade, and Consumer Protection.
University of Wisconsin. Sea Grant Institute.

Polk County Department of Land and Water Resources (Wisconsin).

Wisconsin Department of Natural Resources.
Washington Department of Fish and Wildlife.
Washington Department of Fish and Wildlife.
Washington Department of Fish and Wildlife.
University of Wisconsin. Extension Lakes Program. Citizen Lake Monitoring Network.
University of Wisconsin. Extension Lakes Program. Citizen Lake Monitoring Network.
Washington Department of Fish and Wildlife.
Operators of watercraft not registered in Washington State, seaplanes, and commercial transporters of specified vessel types must purchase aquatic invasive species (AIS) prevention permits to help prevent the spread of AIS in Washington. AIS prevention permits are valid for one year and can be purchased online (under the "Other" Product Categories tab) or from any of the department's authorized license dealers. When purchasing online, you may select a preferred activation date. The permit will be valid for one year from that date.

Wisconsin Department of Natural Resources.

University of Vermont. Entomological Research Laboratory.
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.
eXtension.

eXtension is an educational partnership of more than 70 universities to help you improve your life every day with access to objective, research-based information and educational opportunities. Categories include integrated pest management and fire ants. Requires free registration.
See also: Use the One Search service to search the resources provided by your Cooperative Extension Service using a Google Custom Search Engine that includes many of the Cooperative Extension web sites provided by your Land-Grant institutions.

Lake Champlain Land Trust.
Commonwealth of Northern Mariana Islands. Division of Fish and Wildlife.
University of Vermont. Forest Pathology.