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Plant Identification -- Submerged -- Coontail |
COONTAIL (Ceratophyllum demersum)
Treatment Tips: Treat when plants have accumulated in shallow waters. Floating plants should be treated with liquid spray.
Description: Plants are submersed and without roots. Leaves are dark green in color and arranged in whorls on the stem. Coontail can be distinguished from milfoil by the forking of the leaves rather than the feather-like divisions. Spacing between leaf whorls is highly variable. Consequently, plants may be bushy or extremely long and sparse.
Distribution: Found throughout the U.S., usually in hard water.
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Recommended Control Method: Apply Aqua-Kleen/Navigate evenly at the rate of 150 to 200 pounds per acre. Use for early season applications on low-growing plants.
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Maintenance Control Method: Add Aquashadeat the rate of 1 quart per acre-foot of water to prevent initial growth or to retard regrowth of plants after chemical treatment.
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Alternate Control Methods: Aquathol Granular: 54 to 81 pounds per acre-foot.
Aquathol K liquid: 1.3 to 1.9 gallons per acre-foot.
Cutrine-Plus/Aquathol K: tank mix at the ratio of 1:3. Apply at the rate of 2 gallons per acre-foot.
Cutrine-Plus/Reward: tank mix at the ratio of 1:1. Apply at the rate of 1 to 2 gallons per surface acre.
Reward: 2 gallons per surface acre.
Fluridone (various liquid and pelletized formulations): (see label).
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| Descriptions and pictures are from the book "How to Identify and Control Water Weeds and Algae", Edited by James C. Schmidt, 5th edition revised 1998, copyright 1976 Applied Biochemists. |
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