 | Hi-Yield Treflan Herbicide Granules Weed and Grass Preventer. Prevents weeds around ornamental trees and gardens Controls annual Bluegrass, Barnyard Grass, Crabgrass, Johnson Grass, and more Sprinkle 1 oz. per 10 sq. ft. around trees, shrubs, and established plants (2" to 3" tall)... - Hi-Yield Treflan Herbicide Granules Weed and Grass Preventer. |