This unique product provides both pre-emergent and post-emergent control of both grassy and broadleaf weeds, including crabgrass, nutsedge, goosegrass, ground ivy, and others. Systemic action from the leaves down and the roots up inhibits cell division and disrupts photosynthesis. Works equally well on cool and warm season grasses. Weed Beater Complete is a synergistic combination of Prodiamine and Sulfentrazone. Exhibits excellent cool weather performance. When applied as directed established turf grasses are tolerant to this product at the recommended use rates in a range of 1.91 to 8.60 lb/1000 sq ft.