Cabomba caroliniana leaves

Fanwort (Cabomba Caroliniana)

Invasive Species in the Willimantic River Watershed

In 2012 the aquatic invasive plant Cabomba caroliniana (commonly known as fanwort) was observed in Eagleville Lake by Ct. DEEP staff. A vegetation survey of the lake by the Ct. Ag Experiment Station confirmed widespread growth of this plant. The emergent and floating colonies are inhibiting fishing and boating in the lake's quiet waters. To help prevent it from spreading to other lakes and ponds, check your boat for pieces of fanwort when you take out of this lake.

Towns adjacent to the Lake (Coventry and Mansfield) have partnered to tackle this problem with an aquatic invasive species control grant from Ct. DEEP. In the summer of 2015, an initial herbicide treatment with Clipper (chemically known as Flumioxazin) was applied by a qualified and experienced contractor. Ongoing monitoring is essential and will determine f how future treatments will be tailored.

Photo: By Show ryu (Own work) [CC-BY-SA-3.0], via Wikimedia Commons