| abstract |
Methods and compositions for reducing spray drift during application and / or volatility after application, which can be reduced by incorporation of certain tertiary amine or tertiary amine oxide surfactants into an aqueous herbicide spray mixture containing dicamba. The use of dicamba choline salt and the presence of 3,6-dichlorosalicylic acid (DCSA) or a salicylic acid derivative can further reduce drift and volatility. In some embodiments, the composition may contain one or more additional pesticides, such as glyphosate, glufosinate, or mixtures thereof. The concentration of 3,6-dichlorosalicylic acid or salicylic acid derivative is generally greater than about 25 ppm by weight of the spray mixture. |