Aquatic Vegetation Management Program


Program Update (6/20/2018) 


Due to resident requests, we are working to launch the harvester and barge as soon as possible the week of June 25. We are now working out logistics and details. Today we were testing and replacing worn parts on the harvester. Areas for early operations based on requests include Dana Shores, Lakes End, Times Union, Pickett's Cove, and other areas where weeds are at the surface.

Tentative 2018 Season Schedule

Ontario County strives to adapt the harvesting program to dynamic lake conditions while maintaining lake access for residents and visitors. Below is our tentative schedule (subject to change) for operations once in the lake.


June 25 - June 29

  • Waterline Marking
  • Shoreline Collection
  • Limited Harvesting by Request

July 2 - July 6

  • Weed Harvesting
  • Shoreline Collection
  • NO WORK ON WED-FRI, JULY 4,5 or 6 due to holiday and staff obligations

July 9 - September 13

  • Weed Harvesting
  • Shoreline Collection.
  • Post Labor Day cutting aimed at nutrient removal before plants die and decompose in the lake.

September 17 - October 12

  • Shoreline Collection
Operations occur Monday through Thursday, with effort split between Shoreline Collection (early in the morning) and Harvesting (late morning, afternoons). This schedule will vary based on weather and lake conditions.

Harvesting will be focus on areas where plant growth is at or near the surface of the water. For some areas, this will likely mean three visits during the season, where other areas will see one or two visits, or none at all if weed growth is minimal or absent. Residents are encouraged to contact us to request more (or less) harvesting. Our goal is to meet your needs.  Residents who prefer to not have the harvester cut in front their shoreline should also contact us to express and/or update their preferences.  


Contact 396-4458 or email 

2018 Program Info:

Harvesting Season Reports

Vegetation Maps

Aquatic Vegetation Maps are created three times per season and provide a picture of areas around the perimeter of lake with the most growth. The maps below are examples from June 26, 2016 for the north and south lake basins. The red areas indicate vegetation occupies 90 to 100 percent of the water column. In red zones, vegetation is usually visible at or near the top of the water surface.

Northern Basin Southern Basin