The adjuvant comprises: (a) an ethoxylated fatty acid methyl ester of the formula R1-CO-(CH2CH2O)n-OCH3 where R1 is a C6-C22 alkyl group and n is 1 to about 200; and (b) a component selected from nonionic surfactants, anionic surfactants, cationic surfactants, alkyl esters, phytobland mineral oils, water soluble silicone surfactants, fatty acid dialkyl ethers, fatty acid dialkyl carbonates, vegetable oils, and mixtures thereof.