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FWC conducts aquatic plant control on Lake Parker

Media contact: Melody Kilborn 863-648-3852; Carli Segelson 772-215-9459 Release Date: 05-29-2019   All Articles Tags:

The Florida Fish and Wildlife Conservation Commission (FWC) will conduct aquatic plant control on Lake Parker on May 30, weather permitting. The FWC will treat invasive hydrilla in the Polk County lake in areas where it is encroaching on beneficial native submersed aquatic plants and may impact access to navigation.

The herbicides being used for this treatment are Aquathol, Diquat and ProcellaCOR. These herbicides are approved for use in lakes by the U.S. Environmental Protection Agency and Florida Department of Agriculture and Consumer Services.

There will be no restrictions on fishing and swimming in the lake during or after the treatment. However, there will be irrigation restrictions in the following areas:

  • Eastern shore of Lake Parker from Centurion Drive south along East Lake Parker Drive to the intersection of Lake Parker Drive and Memorial Boulevard – There will be a three-day restriction on irrigation to turf and landscape ornamentals, three-day restriction on drinking, one day for livestock or domestic animal consumption, and five days for food crops and production landscape ornamentals.
  • Southwest cove, which includes the shoreline of Lake Parker from East Bella Vista Street south to U.S. 92 and east to Edgewater Beach Drive –There will be a 14-day restriction on irrigation of landscape or other forms of non-agricultural irrigation. Turf may be irrigated beginning immediately after treatment.

Hydrilla is an invasive aquatic plant easily spread by boats throughout the state’s lakes and rivers. It can clog waterways, making recreational activities difficult or impossible, and competes with beneficial native plants. Managing and treating it is necessary for the health of Florida’s waters and to enable continued recreational boating and other aquatic activities. 

The FWC manages hydrilla on a lake-by-lake basis using a collaborative approach. Management decisions are made after comparing the benefits that low to moderate levels of hydrilla can provide for fish and wildlife, and the desires of various stakeholder groups against the impact this invasive plant can have on native plant communities, access and navigation, flood control, and management costs.

Based on input received from recent public listening sessions, FWC staff is implementing a variety of enhancements to the agency’s Aquatic Plant Management Program. Go to to find out more about invasive plant management.

For general waterbody information, fishing forecasts, virtual tours, plant control operation schedules and annual workplans, boat ramp information, and more, visit the “What’s Happening on My Lake” website at

For more information about the treatment, contact Charlie Thompson, FWC invasive plant management biologist, at 863-534-7074.