Contact information
For information on Lakes in Wisconsin, contact:
DNR Lake
Division of Water
Bureau of Water Quality
Aquatic Invasive Species Contacts

Water Hyacinth - Lake Onalaska

Verified and Vouchered
Date First Found
Location First Found
The water hyacinth and water lettuce was discovered behind a private residence on Lake Onalaska. The owner had a water garden containing both water hyacinth and water lettuce. WDNR (and Federal) Wardens are investigating the issue.
Latitude and Longitude
43.942596, -91.325022
Original Extent
One or a few beds