Non-Native Invasive Species on the Chequamegon-Nicolet

Garlic Mustard Little honeysuckle Common Buckthorn

Garlic Mustard



Non-native invasive species (NNIS) have the capacity to transform or dominate native plant communities. The Chequamegon-Nicolet National Forest implemented a Forest-wide non-native invasive plant management program in 2005. The purpose of the program is to prevent the further spread of non-native invasive species (NNIS) into native ecosystems.

The NNIS inventory is updated annually. The Forest uses the newest information on best available treatment methods, monitors past treatment sites and adapts our methods accordingly.

The Forest launched a “New Invaders” newsletter to inform the public of the non-native species treatments. This was part of the 2014 Administrative Change to the 2005 Chequamegon-Nicolet Invasive Plant Control Project.

New invasive plant sites are entered into a spatial database. Sites that have been analyzed and are cleared for treatment can be seen on the NNIS web mapping application. Click on this User Guide link for a detailed description of how to navigate the map.  

The Chequamegon-Nicolet National Forest works with partners across boundaries through Cooperative Invasive Species Management Area groups. The Forest is a major partner in five groups assisting with the effort to manage invasive species throughout northern Wisconsin. Those include: Northwoods Cooperative Weed Management Area, Upper Chippewa Invasive Species Coalition, Timberland Invasive Partnership, Wild Rivers Invasive Species Coalition and the Wisconsin Headwaters Invasive Partnership.

Currently, 46 species of non-native invasive plants have been found on the Forest and are considered species of immediate concern because they are invading native plant communities. An additional 10 species have been identified as invasive and present within the forest, but the invasion in natural communities is uncertain. These are being monitored.

Click here to view the Non-native Invasive Species List (Updated June 2018)

Botanist Marjory Brzeskiewicz, talks about non-native invasive species

Documents and Supplements related to the Chequamegon-Nicolet Invasive Plant Control Project