Fuente: WIPO "tomato" An adjuvant composition is shown and described herein. The adjuvant composition is suitable for use in conjunction with agrochemical compositions and for application to agricultural substrates. The adjuvant composition comprises: (i) an unsaturated oil and/or a transesterified unsaturated oil; (ii) a trisiloxane alkoxylate surfactant, (iii) a vinyl lactam polymer and optionally (iv) an alcohol. The compositions can function to enhance one or more properties such as, for example, rainfastness spreadability, emulsion stability, and/or reduction in the formation of driftable fines.