How the Friends of the Cobbossee Watershed is fighting an outbreak of milfoil in our waterways.

In 2014, an aggressive invasive species of plant called variable milfoil was discovered at the boat launch in Annabessacook Lake.

Since then, the Annabessacook Lake Improvement Association (ALIA), the Cobbossee Watershed District (CWD), and the Friends of the Cobbossee Watershed have worked with the Maine Department of Environmental Protection to locate these invasive plants and prevent them from spreading. Unfortunately, the problem continues to this day.

Left unchecked, variable milfoil spreads quickly—forming thick mats and proving highly difficult to eradicate. Perhaps most worryingly, a milfoil infestation would threaten recreational areas, hamper property values, and impact businesses that rely on clean, healthy lakes.