Tower herbicide is a broad-spectrum preemergence herbicide with a new active ingredient, dimethenamid-p (DMTA-P), for use in golf course turfgrass and ornamental landscape management. Highly effective on many small-seeded broadleaf weeds, Tower also controls numerous grassy weeds, several annual sedges and yellow nutsedge. Tower controls susceptible weed species as an inhibitor of shoot formation and cell development. Application timings can take advantage of a wider use pattern with preemergence applications on hard-to-control species such as goosegrass, as well as broadleaf weeds such as spurges and doveweed.