The mixing ratios will vary according to where you are treating and what you are treating for. According to the Hi-Yield 2, 4-D Selective Weed Killer product label, in pastures and range land: Use 1 gallon in 15 gallons of water;  or small areas, use 3 to 4 fluid ounces (6 to 8 Tablespoons) per 1,000 square feet; mix 1 to 3 gallons of water and apply uniformly over the area. On Ornamental Turf: Use 1 gallon in 15 gallons of water per acre. Please review the product label for complete usage instructions.