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Curly-leaf Pondweed (Potamogeton crispus) is an exotic invasive species now found throughout the United States. Commonly becomes a nuisance in early spring before native plants appear.
You can get after this plant early! Once water temperatures are around fifty-five degrees or warmer and the plant is viable.
Granular herbicides can be spread by a small Hand held spreader or can be tossed by a hand scoop.
Only once – it will not grow back the same season.
Generally within seven to ten days things will be cleared up.