When it comes to weed control in soybeans, Authority® Supreme herbicide delivers powerful, extended pre-plant or pre-emergent control of a wide spectrum of tough broadleaf and grassy weeds. Authority Supreme herbicide is a top choice for soybean growers in both IP* and herbicide tolerant systems. As a Group 14 and 15 product, Authority Supreme herbicide is a great solution for weeds resistant to Groups 2, 5 and 9 -- and a smart way to delay further resistance.