A herbicide formulation comprisinga1) at least one herbicidal active substance from the class of the ACC inhibitorsa2) optionally at least one safenera3) optionally at least one further herbicidal active substance other than (a1) and (a2)b) one or more solvents of formula (I),R—CO—NR1R2 (I)whereR is a C3-C18-hydrocarbon radical,R1, R2 are identical or different and are a C1-C14-hydrocarbon radical or a C1-C14-hydroxyhydrocarbon radicalc) one or more aromatic solventsd) one or more surfactants from the group of the C8-C22-alkyl alcohols which are alkoxylated, where the terminal hydroxyl groups of these compounds are optionally capped by an alkyl, cycloalkyl or acryl radical having 1-24 carbon atomse) one or more emulsifiersf) optionally one or more auxiliaries andg) optionally wateris suitable in particular for controlling undesired grasses.
