Roundup, 32 OZ, Concentrate, For use on Northern grasses. Kills weeds not the lawns. Destroys the hard-to-kill lawn weeds like crabgrass, clover and yellow nutsedge - all on one formula. Kills over 250 types of weeds. The fastest lawn weed killer ever-starts working immediately. Kills the root. Guaranteed. Active Ingredients: Mcpa, Quinclorac, Dicamba & Sulfentrazone, Not Available In NY, Syfentrazone Restriction.