Wisconsin Department of Natural Resources
State restricted

Eurasian Water-Milfoil

Source: Wisconsin DNR Aquatic Invasive Species program

Date: Data is continuously updated. Metadata last updated 5/09

This data represents waterbodies where Eurasian Water-Milfoil has been found. This aquatic invasive plant may be growing in other waterbodies, but its presence has not been confirmed outside of the waters listed here. Eurasian Water-Milfoil monitoring is conducted on Wisconsin's lakes and streams in the summer months, with the presence lists compiled in the fall.

Eurasian Water-Milfoil differs from native Northern Water-Milfoil in that it grows very quickly and can choke waterways, hampering boat access, fish passage, and water supply intakes. The plants fragment easily, and fragments attached to watercraft can take root in uninfested lakes. By state law, boaters must remove aquatic plants and zebra mussels from their boat before entering a lake, river or stream.

For more information, please visit the Invasive Species topic.