And its done for the health of the lakes and to keep them looking good, too. These orange-colored "weed eaters" play an important role in helping to maintain the water quality at Saratoga Lake.

The impact could also easily spread beyond the state park. The ultimate concern, according to Pilarcik, is preventing the weed from spreading 20 miles further north to the Great Lakes.

Melanie Parker, who manages resources for the Sonoma County Regional Parks, told us the weed is having a banner year. "We have Azolla in every pond or lake in Sonoma County at some level," she said.

After 2 young men die in lake weed removal jobs, their families want change After two young men drowned while working their summer jobs removing weeds from lakes, the Minnesota Legislature is ...