Sonar AS and PR is a highly effective systemic herbicide for control of most aquatic vascular plants. It is most effective when the water flow and discharge is minimal. Application is easy – simply pour into water body at several locations. Plants should be actively growing (water temperatures above 65 degrees Fahrenheit). Sonar will NOT kill algae and some other species. Please consult with us by e-mail to determine your target plant susceptibility and dosage required. Always read the product label before applying. This item cannot be sold to CA, IA, ME, MT, NE, NH, NJ, NY, VT and WA.


Available in Pints, Quarts and 20 lb. Bags (Granular).