VPG Hi-Yield, 12 LB, Turf & Ornamental Weed & Grass Stopper, Dimension, Provides Superior Control Of Crabgrass & Many Other Annual Grass & Broadleaf Weeds In Ornamental Landscape Areas, Established Lawns & Ornamental Turf, Can Be Applied Up To 4 Weeks Later Than Other Pre-Emergent Crabgrass Preventers.