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Full lake herbicide application on Lake McCoy, 6/3

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On 6/3/2024, the Environmental Protection Division will be performing the final herbicide application (bump) in the ongoing full lake aquatic plant herbicide treatment using Tradewind (Bispyribac).

This treatment is part of an ongoing effort to manage hydrilla in the lake.


  • Do not use treated water to irrigate ornamental plants, hydroponic crops, greenhouse/nursery plants or any food crops for 120 days or until the concentration of Tradewind is less than 1ppb. This concentration will be determined by routine water sampling and quantitative testing by the University of Florida.
  • Water treated with Tradewind herbicide may be used to irrigate Bermudagrass or St. Augustinegrass. However, repeated irrigation to turfgrass may cause some chlorosis and growth regulation. Also, heavy repeated irrigation to established landscape ornamentals should be avoided for 3-4 months after the application.
  • There are no restrictions on consumption of treated water for potable use by pets or other animals.
  • There are no restrictions on the use of treated water for recreational purposes, including swimming and fishing.

Please direct any general questions to the Environmental Protection Division at 407-836-1400.

If you have technical questions regarding Tradewind, please contact Dan Beran of Nufarm at