Check the listing for details. Gordon's Amine 400 Concentrated Weed Killer - 1 gal. Condition: New. Listed at 49.95 USD. Pbi Gordon's Amine 400 2,4-D Weed Killer ConcentrateRate of use: 1-2 quarts/A. for pasture and rangeland; see label for complete application information.Amine 2,4-D Weed Killer is an economical 4-lb. per gallon amine 2,4-D formulation for use in specific problems that indicate the economy of using 2,4-D alone. For home lawns, golf courses (especially roughs), parks and drainage ditch banks, roadsides and general weed control, Amine 2,4-D Weed Killer can be used to control weeds in turfgrass such as bluegrass, perennial ryegrass and fescue. It can be applied in spring, summer or fall when weeds are actively growing.A single-component formulation for maximum economyBroad-spectrum broadleaf weed controlEasy-to-read application ratesRecommended for most turf sites, roadsides and general weed controlDOES NOT SHIP TO AK