Abstract: Use of N-substituted pyrrolidones to promote the penetration of agrochemical active agents. The use of one or more N-substituted pyrrolidones of the formula (I), wherein R signifies a linear or branched, saturated alkyl group with 3 to 6 carbon atoms, wherein in the alkyl group, hydrogen —H can be substituted by a methoxy group —OCH3, and wherein 1 to 6 hydrogens —H of the pyrrolidone ring can be substituted by methyl —CH3, to promote the penetration of agrochemical active agents in plants or in non-plant-based harmful organisms is described.

Abstract: The present invention relates to an aqueous herbicidal composition based on a suspension concentrate comprising a herbicidally active compound of the formula (I), a safener of the formula (II) and optionally a herbicidally active compound of the formula (III) In these formulae, R1, R2, R3 and R4 independently of one another are methyl or ethyl; R5 is isopropyl or cyclopropyl; R6 is hydrogen or chlorine; Q is cyclohexane-1,3-dion-2-yl, isoxazol-4-yl or pyrazol4yl; and R7, R8 and R9 are hydrogen, halogen or various organic radicals.