2020 Point Intercept Plant Survey Results

As authorized by the Managers, a subcontractor for Barr Engineering Co. (Barr) conducted point-intercept
aquatic plant surveys at Long Lake, Long Lake-Katherine Abbott Pond, Lake DeMontreville, Lake Olson,
Lake Jane, Lake Elmo, and Silver Lake (Figure 1) in June 2020. The plant surveys assessed the plant
communities and results of lake associations’ efforts to manage aquatic invasive species during 2020.
Lake associations treated Eurasian watermilfoil (EWM) in Silver Lake, Long Lake, Lake DeMontreville, Lake
Olson, and Lake Jane with herbicide and harvested EWM in Lake Elmo. The Silver Lake Improvement
Association (SLIA) treated curly-leaf pondweed (CLP) in Silver Lake with herbicide.

2020 Point Intercept Plant Survey Results