Reference
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Black, Buffalo, Trempealeau basins
The Black, Buffalo, Trempealeau basin is a group of three distinct mainstem river basins - the Black, the Buffalo and the Trempealeau, which drain to the Mississippi. This basin is part of the Great Western Rivers area of Wisconsin. The ridgetop and…
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Understanding invasive species
Wisconsin Statute Section 23.22 (1) (c) defines invasive species as "nonindigenous species whose introduction causes or is likely to cause economic or environmental harm or harm to human health." Humans move organisms around all the time.…
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Invasive Species Rule – NR 40 terminology
Prohibited Invasive species that are not currently found in Wisconsin, with the exception of small pioneer stands of terrestrial plants and aquatic species that are isolated to a specific watershed in the state or the Great Lakes, but which,…
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Report invasive species
We are working to keep invasive species out of Wisconsin. Early reports of new populations allow us to respond rapidly and control invasives before they spread into new areas. Select from the tabs below to report invasive species you have found.…
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Publications
Publication Catalogs Terrestrial invasive plant publications catalog Aquatic invasive species publications catalog Management Plans Wisconsin Aquatic Invasive Species Management Plan Invasive Plant Control and Restoration Resources
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Partners
Please choose a category from the menu below for a listing of related organizations. Please note all links exit the DNR website. Links to publications and other educational resources can be found on our publications page.
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Purple loosestrife biocontrol — and you
Purple loosestrife (Lythrum salicaria) is a flowering plant that can reach 3’-7’ tall and is listed as a Restricted Invasive Species in Wisconsin because of its history of causing negative ecological impacts to wetlands and shorelines. Extensive…
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Jumping worms
Mature jumping worm. Photo Credit: Susan Day, UW-Madison ArboretumJumping worms are non-native, invasive earthworms first confirmed in Wisconsin in 2013. Native to eastern Asia, they present challenges to homeowners, gardeners and forest…