With four powerful active ingredients, Q4 Plus Turf Herbicide for Grassy & Broadleaf Weeds offers a single product option to control crabgrass and yellow nutsedge, as well as tough broadleaf weeds like clover and chickweed. Q4 Plus is highly selective on cool-season and listed warm-season turfgrasses. It offers rapid visual response and has a one-week reseeding interval for most listed turf.