Provided herein are synergistic herbicidal compositions containing and methods of controlling undesirable vegetation utilizing (a) a compound of formula (I): or an agriculturally acceptable salt or ester thereof and (b) halosulfuron-methyl, pyrazosulfuron-ethyl or esprocarb, or an agriculturally acceptable derivative thereof. The compositions and methods provided herein provide control of undesirable vegetation, e.g., in direct-seeded, water-seeded and transplanted rice, cereals, wheat, barley, oats, rye, sorghum, corn or maize, sugarcane, sunflower, oilseed rape, canola, sugar beet, soybean, cotton, pineapple, oilseed rape, vegetables, pastures, grasslands, rangelands, fallowland, turf, tree and vine orchards, aquatics, plantation crops, vegetables, industrial vegetation management (IVM) or rights of way (ROW).本文提供包含下列之協同性除草劑組成物以及使用下列來控制非所欲的植被之方法:(a)式(I)的化合物:或其農業上可接受的鹽類或酯類以及(b)甲基合速隆、乙基百速隆或戊草丹,或是其農業上可接受的衍生物。本文提供之組成物及方法提供,例如於直播的、水播的和移栽的稻米、穀類、小麥、大麥、燕麥、黑麥、高梁、玉米(corn)或玉米(maize)、甘蔗、向日葵、油菜、芥花、甜菜、大豆、棉花、鳳梨、油菜、蔬菜、牧草、草地、牧場、休耕地、草皮、樹和葡萄樹果樹園、水生植物、種植園作物、蔬菜、工業植被管理(IVM)或公用路線穿越用地(ROW)中之非所欲的植被之控制。