A storage-stable aqueous agrochemical concentrate formulation comprises a) an agrochemical electrolyte such as glyphosate b) a water-insoluble agrochemical system such as diuron c) an alkylglycoside and d) a co-surfactant which interacts with the alkylglycoside to form a structured aqueous system. Examples of the co-surfactant include: i) a linear or branched chain aliphatic or aromatic alcohol or ii) an alcohol alkoxylate or ester alkoxylate or alkyl phenol alkoxylate iii) a glyceryl alkyl or alkenyl ester and iv) a sorbitan alkyl or alkenyl ester. The composition optionally contains an additional ionic surfactant.