Common Herbicides Used for Athletic Turfgrass Weed Management Atrazine – similar to simazine – apply in dormant bermudagrass usually in January or February after simazine in November – one of the best herbicides for winter weed management. Glyphosate (Roundup and generics) – non-selective herbicide. Rate = 2.6 oz/gallon. Metsulfuron (Manor/Blade) – Excellent broadleaf herbicide that also controls bahiagrass. Herbicide is a very effective alternative to 2,4-D containing products. MSMA – good crabgrass and dallisgrass control – repeat application in 7 to 10 days. Add Sencor for goosegrass. Nutsedge Killers (coco, nutgrass) – halosulfuron (Sedgehammer), sulfosulfuron (Certainty), trifloxysulfuron (Monument) – all are very effective and can be tank-mixed with MSMA. Simazine – most often used after the last home game in football in November – provides preemergence and early postemergence annual bluegrass (Poa) and winter broadleaf weed control. Sencor – often added to MSMA to increase effectiveness on goosegrass. Consult label for rates. 2,4-D – economical herbicide that provides adequate control of most broadleaves. Herbicide is not effective on white clover. Observe restriction periods in cotton production areas of the state. Trimec – contains three broadleaf herbicides 2,4-D, mecoprop, and dicamba. Usually more effective than 2,4-D alone and better on clovers, thistles etc. Observe 2,4-D restrictions for cotton areas.