The invention relates to aqueous suspension concentrates containing: (1) at least one active ingredient from the group of 4-benzoylpyrazoles, (2) at least one surfactant based on substituted phenol ether, (3) at least one thickener based on aluminium silicate, (4) optionally other formulation adjuvants, and (5) optionally other surfactants different from constituent (2). In this way, in addition to the highly concentrated formulation of active ingredients, an improved biological action can be achieved with the same means.