In April2003, a large-scale treatment for curly-leafpondweed (Potamogeton crispus) totaling 25 acres was conducted using the herbicide Aquathol K® (liquid endothall). This treatment was duplicated in April 2004. This treatment was followed by an aquatic plant restoration project funded in part by a Lake Management Planning Grant. As part of the plant restoration project, 5.1 acres of Black Otter Lake were planted with native macrophytes. These plants were placed in the inlet areas to help filter excessive nutrients entering the lake and reestablish native plant communities displaced by nuisance exotics. In April2005, a treatment targeting 37.4 acres ofboth curly-leafpondweed and Eurasian watermilfoil (Myriophyllum spicatum) was conducted using a combination of Aquathol K® and Weedar 64® (liquid 2,4-D).

The Black Otter Lake P&R District proposes to conduct a restoration evaluation on their lake. This evaluation will include a macrophyte restoration evaluation, aquatic pant treatment evaluation, and a report on efficacy of macrophyte restoration evaluation, aquatic plant treatment evaluation with recommendations. See project description submitted with application materials for more information.