An aqueous agrochemical composition and in particular an agrochemical concentrate comprises (a) a non-encapsulated aqueous solution or dispersion of an agrochemical and (b) a suspension in said aqueous solution or dispersion of a microencapsulated liquid, water-insoluble, bioperformance-enhancing adjuvant for said agrochemical. The adjuvant suitably has little or no surfactant properties. The invention permits oil adjuvants such as “Turbocharge” and “Brij 92” to be built into agrochemical compositions with which they would normally be incompatible. With certain adjuvants reduced phytotoxicity may be observed.