The invention relates to liquid aqueous formulations of water-soluble agricultural pesticide active ingredients, containing (a) one or more water-soluble active ingredients (active ingredients of type (a)), (b) optionally one or more water-insoluble active ingredients (active ingredients of type (b)), (c) optionally polar organic solvents, (d) anionic surfactants, (e) optionally non-ionogenic, cationic and/or zwitterionic surfactants, (f) a silicone-based defoaming agent selected from the group of linear polydimethyl siloxanes with an average dynamic viscosity, measured at 25 °C, in the range of 1000 to 8000 mPas and with a silicic acid content, (g) optionally other conventional formulation adjuvants and (h) water. Said formulations are suitable for use as low-foaming formulations for crop protection applications. It is also possible to use the corresponding adjuvant formulations that are devoid of active substances in a tank mix method using active ingredient formulations or during a split application using active ingredient formulations.
