On July 19, 2018 our Cobbossee Annabessacook Milfoil Project plant survey team found suspicious plants while surveying the north end of Cobbosse Lake near Lakeside Marina.  A plant sample was taken and immediately shared with the Maine Department of Environmental Protection invasive aquatic plant team.  The plant was identified as Eurasian Water Milfoil and DNA confirmed on August 7, 2018.  DEP is heading the rapid response process, and have been diving to get a handle on the number and location of plants, as well as removing ALL suspicious plants found.  The Friends of the Cobbossee Watershed  teams have been assisting DEP by routinely surveying and marking the locations of suspicious plants for DEP to remove.

Eurasian milfoil is more aggressive than variable milfoil, which has been plaguing nearby Annabessacook lake.  Though we had been worried about the spread of variable milfoil in the southern part of Cobbossee it goes without saying that the discovery of Eurasian milfoil in the northern part of Cobbossee was a shock.  The FOCW will be doubling down with our efforts, altering our plans a bit to survey the known area in and adjacent to, the marina, so that we may find plants as they emerge.  We will continue to work closely with the Maine DEP and the owners of Lakeside Marina to prevent further introduction of invasive plants as well as stop those that have already been introduced from continuing to grow.  We intend to manage this situation as swiftly as possible.

For more information and articles about the recent outbreak, check out these links below:


NEW Project for 2018


We work to protect our waters through education and conservation.


The Friends of the Cobbossee Watershed was founded in 2001 by a group of local residents who were concerned about declining water quality on their lakes.  A 217 square mile drainage basin in central Maine, the Cobbossee Watershed contains more than 15,000 households and attracts thousands of tourists and summer residents each year. 


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