Northwoods Cooperative Weed Management Area
Northwoods Cooperative Weed Management Area

Working Together to Protect

Northern Wisconsin from Invasive Species

2020 Updates

NCWMA Spring 2020 Newsletter
NCWMA Newsletter Spring 2020.pdf
Adobe Acrobat document [3.1 MB]

Watch this video to learn about garlic mustard and it management in the NCWMA.

High Priority Invasive Species in the NCWMA

Below are a few high priority invasive species of the NCWMA.  Click this link for information on these and other high priority invasive species in our region.

Garlic Mustard

Garlic Mustard spreads quickly through rich hardwood forests.  Volunteers can help hand-pull garlic mustard in the spring! Read more!

Knotweeds

Giant, Japanese, and Bohemian Knotweeds were planted in yards throughout the region.   Read more on basic identification and the NCWMA Knotweed Project.

Wild Parsnip

Watch out for wild parsnip!  This invasive species can cause severe blisters when sap on skin is exposed to light.  Read more!

Giant Hogweed

Giant in every way!  The sap is toxic to skin.  This species is rare in our area.  Learn how to identify it.

Invasive Bushes

Exotic buckthorns, honeysuckles and Japanese barberry are ornamental bushes that invade forests.  Learn more.

Teasels

Cut-leaf and common teasels are uncommon in the area.  The NCWMA would like to eradicate all sites.  Learn more.

Phragmites

Invasive Phragmites (common reed) takes over wetlands. Learn more

Purple Loosestrife

Purple loosestrife is pretty, but invasive in wetlands throughout the area. Learn more.

Garden Valerian

Garden valerian has become ivery common along roads and fields in Douglas and Bayfield County. Learn more.

Range of the Northwoods Cooperative Weed Management Area

The Northwoods CWMA includes the four counties that border Lake Superior in Wisconsin:  Ashland, Bayfield, Douglas, and Iron Counties.  Here is a map of this area.

NCWMA Brochure

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