Ortho Nutsedge Killer For Lawns Ready-To-Spray 32 oz. is a specially formulated herbicide that is designed to effectively control Northern and Southern turf grasses. It contains 1.40% Sulfentrazone which helps kill tough weeds such as purple and yellow nutsedge, chickweed, spurge, knotweed, kyllinga, plantain, clover, and other listed weeds. It is ideal for use on cool season grasses like fine and tall fescue, creeping bentgrass, perennial ryegrass, Kentucky, as well as on warm season grasses like bermudagrass, bahiagrass, centipedegrass, carpetgrass, kikuyugrass, zoysiagrass. It is recommended to apply it on weeds when they are less than 3 inches high to achieve best results. Product comes in 32 oz. bottle with hose end sprayer and can treat up to 5,000 sq. ft.