News Releases

Hydrilla treatment scheduled for lakes Butler, Tibet

News Release

Friday, December 11, 2015

Media contact: Greg Workman, 352-732-1225

The Florida Fish and Wildlife Conservation Commission (FWC) will treat hydrilla in portions of Lake Butler and Lake Tibet on Dec. 15, weather permitting. The FWC’s Invasive Plant Management Section will treat a total of 92.2 acres of hydrilla as indicated on the attached mapsAdobe PDF. Applications of Aquathol K and Galleon SC herbicides will be made by subsurface injection.

There are no restrictions for fishing, swimming or turf irrigation in the management areas. There is an irrigation restriction with treatment water containing Galleon, for hydroponic farming, greenhouse or nursery plants and nonfood crops (e.g., landscape ornamentals) until treated water concentrations are below 1 ppb as determined using FasTEST water sampling, approximately 10 days after treatment. Aquathol K and Galleon are approved for use in lakes by the U.S. Environmental Protection Agency and the Florida Department of Agriculture and Consumer Services.

The treatments are planned to enable navigation access and prevent encroachment by hydrilla on beneficial native submersed aquatic plants. Hydrilla is an invasive, exotic, aquatic plant spread easily by boats throughout the state’s lakes and rivers. It clogs waterways, making recreational activities difficult or impossible, and chokes out 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.

While recreational anglers and waterfowl hunters may see some benefits from the hydrilla, there are other potential negative impacts to consider including negative impacts to beneficial native habitat, navigation, flood control, potable and irrigation water supplies, recreation and the aesthetic qualities of lakes. The FWC attempts to balance these needs while managing hydrilla.

For questions about this treatment, please contact Lorne Malo, FWC invasive plant management biologist, at 407-858-6170.

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