The present invention relates to a herbicide composition comprising a first compound, belonging to the aryloyxphenoxyproprionate family, and a second compound, belonging to the cyclohexanedione family. Said composition is characterized in that the first compound and the second compound are present in said composition at a ratio varying from 1:1.5 to 1:4. The present invention also relates to a method for controlling at least one weed capable of developing in a crop field for a plant to be cultivated with said composition of the invention. Finally, the use of the herbicide composition for treating a dicot crop is also claimed.