The present invention relates to the use of a herbicidal composition comprising as component A) 4-(2,4-dichlorophenoxy)butanoic acid or salts or esters thereof and as component B) 3,6-dichloro-2-methoxybenzoic acid or salts or esters thereof for controlling unwanted vegetation in crop plants. The present invention also relates to a method for controlling unwanted vegetation in crop plants, which comprises allowing a composition comprising said components A) and B) to act on plants, their seeds and/or their habitat.
