Amine 400 2, 4-D Weed Killer is a concentrated herbicide formulation. Can be mixed with other products like Gordon's Liquid Lawn and Pasture Fertilizer. Economical control of broadleaf weeds in lawns, pastures, rangeland, corn, sorghum, wheat, and barley. Also use on fencerows, drainage ditch banks, rights-of-way, and industrial sites.1 gallon covers up to 174, 240 sq. ft. (4 acres) on listed pastures2.5 gallons covers over 400, 000 sq ft on listed pastures | Gordon's 2 ,4-D Amine 400 Weed Killer | Size 1 gal