Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food, Pre-Emergent Weed Killer, Fertilizer, 15,000 sq. ft., 40.05 lb.Brand: Scotts Color: B000OWC0KW Features: Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food stops crabgrass before it invades and feeds grass for a fast green up after winter Prevents listed weeds including crabgrass, barnyard grass, foxtail, Poa annua, chickweed, and oxalis Apply pre emergent weed killer plus fertilizer to a dry lawn in early spring (prior to 3rd or 4th mowing) before temperatures are regularly in the 80s; rain, snow, or