The present invention relates to liquid active ingredient concentrates that can be emulsified in water, said concentrates comprising at least a herbicidal dinitroaniline, in particular pendimethalin, and at least an imidazolinone herbicide, in particular Imazomax. The composition comprises: a) 100 to 400 g/l of at least one herbicidal dinitroaniline (component a) b) 5 to 100 g/l of at least one imidazolinone herbicide in the form of the ammonium salt or substituted ammonium salt thereof (component b) c) 20 to 100 g/l water (component c) d) 15 to 150 g/l of at least one anionic surface active substance comprising at least one sulfonic acid group in the form of the sodium, potassium, ammonium or substituted ammonium salt of said surface active substance, (component d) e) 5 to 100 g/l of at least one polymeric, non-ionic surface active substance comprising at least a polyethylene oxide group and at least a radical selected from poly-C
