Just one clarification that I spotted (hoping that JM won't mind).
One gallon of the liquid rotenone formulation will treat 1 acre-foot of water at 3 ppm, which is usually an effective treatment. So, if a pond is 3 acres, and has an average depth of 7 feet, then 21 gallons (21 acre-feet) would be required for the 3 ppm treatment. JM is certainly correct when he advises you to drain as much water as possible prior to treatment. Less water equals a lot less bucks.
Dave
