Wildlife and Fisheries Extension

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Coontail

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Coontail

Chemical Treatments

Read and follow label instructions before using any chemical in water. Dilute with enough water to permit even coverage over area to be treated. There may be restrictions or waiting periods on treated water.

  • Aquathol (Endothall) - 2 gallons per surface acre; although you may need to use as much as 2 gallons per acre foot in some cases.
  • Reward (Diquat) - 1 to 1.5 gallons per acre foot.
  • Sonar AS (Fluridone) Fluridone liquid at 1 quart per surface acre of pond. Distribute as evenly as possible over the entire pond. Fluridone cannot be used as a spot treatment

The information given here is for educational purposes only. Reference to commercial products or trade names is made with the understanding that no discrimination is intended toward other products that may also be suitable.

We have taken particular attention to make certain that all herbicide treatments have been registered with the Environmental Protection Agency for use in the manner described. Registrations for specific practices are often changed or deleted; therefore, treatments suggested in this information sheet may not remain current indefinitely. Read and observe the manufacturer's label to prevent misuse of a herbicide. It is not intended or proposed that usage of any given practice suggested in this information sheet be in violation with existing registration or manufacturer's label.

If you fail to carefully read and follow suggested treatments, you could cause extensive damage to the environment, crops, livestock or humans.

Biological Treatments

Grass carp have been highly effective in providing good control of this aquatic weed. Generally, 5 to 10 grass carp per surface acre will control weeds. Extremely inundated ponds will need higher stocking levels. See publication 1894 - Grass Carp in Mississippi Farm Ponds for more information.