Drew Perlmutter, education and outreach project manager for Lake Stewards of Maine, explains to participants Thursday what to look for in an aquatic plant in order to determine if it is an invasive species during a workshop at Silver Lake Campground in Roxbury. Perlmutter is holding a Curly Leaf Pond Weed, one of the invasive species found in Maine.
Russ Dillingham/Sun Journal Buy