My place is 1.5 acres total, including the house, detached garaged, 3 other outbuildings, and the house. I can 2-4-D my place with a tractor supply sprayer with 20 gallons water, 2.5 ounces 2-4-D per gallon. Could probably have done 2 ounces. Had buttercups for days, 1 application, everything...