2021 Treatment Areas

To maintain environmental quality and public health and safety, the Lake St. Clair Cooperative Invasive Species Management Area and various local governments will be treating invasive plants in several locations around Macomb and St. Clair counties. Maps highlighting treatment locations, treatment notices, and risk/benefit information are below.

To maintain public health and safety, the Lake St. Clair CISMA, Macomb County Public Works Office, and Great Lakes Restoration Initiative will be treating invasive plants along Macomb County drains starting September 13, 2021. For more information, see below.


To maintain public health and safety, the Lake St. Clair CISMA and Macomb County Public Works Office will be treating invasive plants along Macomb County waterways starting July 1, 2021. For more information, see below.


To maintain public health and safety, the Lake St. Clair CISMA and St. Clair County Parks and Recreation will be treating invasive plants in St. Clair County starting August 1, 2021. For more information, see below.