The new formulations of dicamba herbicides, Xtendimax and Engenia, were registered and released for use in dicamba tolerant cotton and soybean across most of the United States in 2017. Dicamba is an effective herbicide for control of small Palmer amaranth and was used extensively on dicamba-tolerant soybean the last two growing seasons. Although these new formulations were developed to minimize volatility potential compared older formulations, off-target injury to non-dicamba tolerant crops were observed. This research evaluates the volatility potential of these new dicamba formulations under controlled growth chamber conditions which simulate conditions during typical South Carolina growing seasons.

Key Benefactors:
farmers, agronomists, extension agents, herbicide producers