Fast acting contact herbicide for many aquatic weeds.Can treat up to 5,000 square feet!Designed to be applied with a pressure sprayer after mixed with water.For best results use in water temperatures above 50 degrees Fahrenheit.Spray 1/3 to 1/2 of the pond at a time. Wait 14 days between treatments.Cannot be shipped to: AK, AZ, CA, CT, DC, HI, ME, NJ, NY, PR, RI, VT, WA, & Canada