The invention relates to the use of one or more alkoxylated vegetable oil derivatives for reducing the drift during the application of plant treatment agents, wherein these alkoxylated vegetable oil derivatives contain structural units resulting from a) vegetable oil, and b) alkylene oxide, wherein alkylene oxide represents ethylene oxide, propylene oxide, butylene oxide or mixtures of ethylene oxide and propylene oxide or mixtures of ethylene oxide and butylene oxide, and c) one or more monocarboxylic acids according to formula (I): R1-COOH, in which R1 represents unbranched or branched, saturated alkyl with 1 to 29 carbon atoms or unbranched or branched, mono- or polyunsaturated alkenyl with 2 to 29 carbon atoms.
