Herbicidal compositions and methods using a combination of (a) a compound of formula (I): or an agriculturally acceptable salt or ester thereof and (b) picloram or an agriculturally acceptable salt or ester thereof provide control of undesirable vegetation in, e.g., rice, wheat, barley, triticale, oats, rye, sorghum, corn or maize, oilseed rape, vegetables, pastures, grasslands, rangelands, fallowland, turf, tree and vine orchards, aquatics, industrial vegetation management or rights-of-way.除草組成物及方法，其使用下列之組合：(a)式(I)的化合物：或其農業上可接受的鹽類或酯類，以及(b)毒莠定或其農業上可接受的鹽類或酯類，提供於以下內之非所欲的植被之防治：例如，稻米、小麥、大麥、黑小麥(triticale)、燕麥、黑麥(rye)、甘蔗、玉米(corn)或玉蜀黍(maize)、油菜(oilseed rape)、蔬菜、牧草地、草地、牧場、休耕地、草皮、樹和藤果園(tree and vine orchards)、水生植物，工業植被管理(industrial vegetation management)或公用路線穿越用地(rights-of-way)。
