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Invasive Species Resources

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Montana Fish, Wildlife, and Parks.
Montana Department of Livestock. Animal Health Division.
Kansas Department of Wildlife, Parks, and Tourism.

Kansas Department of Wildlife, Parks, and Tourism.

Kansas Department of Wildlife, Parks, and Tourism.

Montana State University.
The Center for Invasive Species Management closed in 2015. Archives of relevant materials are available here.
Delaware Department of Agriculture.
A destructive, invasive beetle that kills ash trees, the emerald ash borer (EAB), has been confirmed in Delaware, making it the 28th state to have found the insect, the Delaware Department of Agriculture announced today. Delaware will be added to a federal quarantine already in 27 other states restricting the interstate shipment of all ash wood and wood products - ash nursery stock, green lumber, waste, compost and chips - as well as hardwood firewood of all species.
Ohio Department of Natural Resources.
South Dakota State University. Agricultural Experiment Station; Cooperative Extension Service.
Ohio State University. College of Food, Agricultural, and Environmental Sciences.
Delaware Invasive Species Council.
Be on the lookout for these up-and-coming invaders! They might not be in Delaware yet, but our best defense is early detection and rapid response!
Montana State University Extension.
USDA. Forest Service.
There are 21 major species of noxious weeds (invasive) on the Black Hills National Forest in western South Dakota and northeastern Wyoming. 
DOI. Bureau of Land Management.
DOI. NPS. Yellowstone National Park.
If you plan to use your own boat or angler float tube, you’ll need a permit and a free Yellowstone aquatic invasive species inspection. You can speed up the inspection process by arriving with a boat that is clean, drained, and dry. Watercraft that arrive dirty or with standing water will be subject to decontamination. Watercraft that cannot be properly decontaminated will be prohibited from launching.
Kansas State University. Agricultural Experiment Station and Cooperative Extension Service.
See also: Weed Management Publications for more resources

Ohio Department of Natural Resources. Division of Forestry.