Northwoods Cooperative Weed Management Area
Northwoods Cooperative Weed Management Area

Click below for specific information on a number of common invasive species in the NCWMA area:

Eurasian Honeysuckle

Common buckthorn

Glossy Buckthorn

Garlic Mustard

Japanese Knotweed and Giant Knotweed


Leafy Spurge

Spotted Knapweed

Canada Thistle

Reed Canary Grass


Purple Loosetrife

Eurasian Water-Milfoil


See the Wisconsin DNR Invasive Species page for more information on terrestrial and aquatic invasive species.


Emerald Ash Borer has now been found in the City of Superior reslulting in a quarantine for Douglas County.  See the City's EAB page for more information.

Another new invader to northwest Wisconsin has been found in SW Ashland County, Japanese hedge-parsley.  If you find any evidence of this plant or the emerald ash borer, please contact us.

Emerald Ash Borer information

Japanese Hedge-Parsley information

Want more information on these and other invasive plant species in Wisconsin?  Click here to go to the Field Guide to Terrestrial Invasive Plants in Wisconsin.  You can also get a copy of this field guide free of charge from the NCWMA while supplies last.  Please contact us to receive a copy.

Want to report an invasive species sighting?  Please click here.  Want to research control options?  Click here.

Click here to subscribe to the NCWMA Mailing List!

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