Abstract: A herbicidal composition comprising: a) a herbicide compound A, which is selected from the group of imidazolinones; and b) an adjuvant B, which is a surfactant selected from the groups b1 to b5: b1) a nonionic surfactant of the formula R1Xn and polyalkoxylated derivatives thereof, wherein R1 is selected from aliphatic or aromatic residues having at least eight carbon atoms; X is selected from hydroxy, —O—(C1-C6-alkyl), —O—(C3-C6-alkenyl), amine, amide, or ester; and n is 1, 2, 3, 4, 5 or 6; b2) an anionic surfactant of the formula R1Yn, wherein R1 is selected from aliphatic or aromatic residues having at least eight carbon atoms; Y is selected from carboxylate, sulfonate, sulfate, phosphate, or phosphonate; and n is 1, 2, 3, 4, 5 or 6; b3) a cationic surfactant; b4) a zwitterionic surfactant; or b5) a polymeric surfactant; and wherein the weight ratio of the herbicide compound A and the adjuvant B is from 2:1 to 1:60; and the use of the said compositions for controlling undesirable vegetation.