Hydrilla Eradication: 2006-2016

In 2006, Lake Manitou was infested with an invasive plant species called Hydrilla. Concerned about the impact on the environment, the Indiana Department of Natural Resources chemically treated the lake for a period of 10 years, virtually wiping out all plant life in Lake Manitou. Prior to that time, the naturally shallow lake had been slowly overtaken by both native and invasive plants, making it difficult to navigate and recreationally enjoy Lake Manitou. Boats would get weeds caught in their motors, and homeowners would spend weekends raking cut weeds from their shorelines.