Although a tremendous amount of mechanical effort was expended to monitor and control EWM infestation on Virgin Lake for many years, chemical treatment was deemed necessary in 2023 to recover a portion of the lake.

This burgeoning growth initiated “surface matting” which makes it almost impossible to swim, fish, kayak or boat in the area. Last Fall, armed with the latest survey data, the TLWA, Onterra and Virgin Lake property owners all agreed to apply to the Wisconsin Department of Natural Resources for a permit to treat the 12-acres with a herbicide called ProcellaCor.