This unique product provides both pre-emergent and post-emergent control of both grassy and broadleaf weeds-including nutsedge, goosegrass, ground ivy, and others. Systemic action from the leaves down and the roots up inhibits cell division and disrupts photosynthesis. Works equally on cool and warm season grasses. Weed Beater is a synergistic combination of Prodiamine and Sulfentrazone. Exhibits excellent cool weather performance.