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Plant Identification -- Submerged -- Clasping-Leaf Pondweed |
CLASPING-LEAF PONDWEED (Potamogeton richardsonii)
Treatment Tips: This two species is notorious for their resistance to chemical control. Often growing in patches or beds, the tough stems and leaves remain standing and intact even after death of the plant, especially in hard waters.
Description: Leaves are wide and wavy with a broad base which appears to extend three quarters of the way around the stem. Upper stem commonly branched and leafy. Leaves alternately arranged on stem.
Distribution: Common in hard water throughout the northern half of U.S. Plants often appear brown due to mineral deposits on leaves.
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Recommended Control Method: Tank mix 1 part Cutrine-Plus to 2 parts Aquathol K. Apply at the rate of 2 gallons per acre-foot of water. Dilute to facilitate even distribution.
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Maintenance Control Method: Add Aquashade at 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 108 pounds per acre-foot.
Aquathol K liquid: 1.3 to 2.6 gallons per acre-foot.
Reward: 2 gallons per surface acre (conditional control).
Fluridone: Various liquid or pelletized formulations(see label).
*Ovate: shaped like an egg with the broader end downward.
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