Aquatic Weed Control is heavily involved in the Lake Manitou Hydrilla Project. Lake Manitou was the first lake in the Upper Midwest where hydrilla was discovered. We currently survey the lake every other week to search for any hydrilla re-growth. We also collect water samples to monitor herbicide concentrations and collect dissolved oxygen and temperature data for the IDNR throughout the summer months.

We also work closely with the IDNR to provide control of starry stonewort (Nitellopsis obtusa) on several lakes through a grant from the Great Lakes Restoration Initiative. Starry stonewort is a relatively new invasive plant in Indiana, and its prevalance is increasing throughout Northern Indiana.

Aquatic Weed Control has developed aquatic vegetation management plans for over 25 separate Indiana lakes. Each of these plans has been approved by the Lake and River Enhancement (LARE) biologists. These lakes are listed below. Many of these plans can be found at the following link: LARE Project Reports

    These lakes include:

  • Lake Wawasee
  • Lake Manitou
  • Waubee Lake
  • Adams Lake
  • Shipshewana Lake
  • Syracuse Lake
  • Dewart Lake
  • Little Turkey Lake
  • Big Lake
  • Lake George
  • Silver Lake and North Little Lake
  • Lake of the Woods
  • Skinner Lake
  • Hill Lake
  • Cree Lake
  • Center Lake
  • Big Long Lake
  • Oliver, Olin and Martin Lakes
  • Pretty Lake
  • Beaver Dam and Loon Lakes
  • Lake Gage and Lime Lakes
  • The Saint Joe River
Main Area Served


South Bend, Fort Wayne, Crown Point, Valparaiso, Wabash, Plymouth, Angola, Coldwater, MI, Berrien Springs, MI.