Image label. Image is a post-emergent, selective herbicide for use in southern turfgrass and selected ornamentals (Bermudagrass, St. Augustinegrass, Centipedegrass, and Zoysiagrass). DO NOT apply to St. Augustinegrass for winter weed control. Apply Image following the spring green up and preceding the onset of winter dormancy. Targets the toughest southern weeds: Wild onion and garlic, dollarweed, field sandbur, ryegrass, crabgrass, bahiagrass, white clover, henbit, chickweed, annual bluegrass, Virginia buttonweed, dandelion, purple and yellow nutsedge, or nutgrass. Expect to see weed discoloration in 1 to 2 weeks and death in 3 to 4 weeks. 24 oz concentrate bottle.