Sonar Herbicide, 1 Gallon
A specialty herbicide that controls almost all aquatic weeds. Sonar should be applied early in the season, prior to or just after plant growth begins. Very effective on duckweed and milfoil. Treatments last for several seasons in many cases. Sonar is absorbed by the plants and inhibits the weed's ability to make food, causing it to die. Intial results can be seen in ten days. Complete kill can take 30 to 90 days.
Treats up to 4 acres depending on plants
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AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, & WA restrict the shipment of products into their states. Products can be bought from within the state but not shipped in.