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Invasive Species Resources

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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. 
Washington Native Plant Society.
Maine Department of Environmental Protection.
Montana Fish, Wildlife, and Parks.
Pacific Biodiversity Institute (Washington).
Montana Department of Livestock. Animal Health Division.
North Dakota Department of Agriculture.
North Dakota Game and Fish Department.
University of Arkansas. Cooperative Extension Service.
See also: Common Disease Problems for more fact sheets.
Washington Department of Fish and Wildlife.
Washington Department of Fish and Wildlife.
Washington Department of Fish and Wildlife.
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.
North Dakota Game and Fish Department.
Montana State University.
The Center for Invasive Species Management closed in 2015. Archives of relevant materials are available here.

Arkansas Agriculture Department. Arkansas Forestry Commission (AFC).

AFC aims to maintain healthy, productive forest ecosystems by preventing, detecting, and suppressing damaging insects and diseases across all land ownerships.

Arkansas Agriculture Department. Arkansas State Plant Board.

University of Arkansas. Cooperative Extension Service.
Provides information to find out how you can help stop the spread of invasive animals, diseases, insects, and plants.
University of Arkansas. Cooperative Extension Service.
The collection of digital images is provided as a service to Arkansas agriculture. These images represent symptoms of both pathological (infectious) and non-pathological (physiological/environmental) disorders of agronomic row crops and horticultural crops that grow in Arkansas. These photos are useful as an identification tool to growers of the crops listed.

Arkansas Agriculture Department.

The mission of the Arkansas State Plant Board is to protect and serve the citizens of Arkansas and the agricultural and business communities by providing information and unbiased enforcement of laws and regulations thus ensuring quality products and services.