lake bomoseen has had a long history of invasive weed problems. by the early 1980s, eurasian watermilfoil ("myriophyllum spicatum") was the dominant weed species in the lake. eurasian watermilfoil is an introduced species that is difficult to control due to its ability to survive in various environmental conditions. at one point the watermilfoil covered of the lake, impairing its recreational and commercial uses.