A herbicidal composition comprising i) clethodim, ii) a sulfonate surfactant such as calcium dodecylbenzenesulfonate, iii) a polyoxyalkylene polyaryl ether such as polyoxyethylene polyoxypropylene tristyryl phenyl ether and polyoxyalkylene distyryl phenyl ether, iv) an aromatic hydrocarbon, and optionally, v) an ester of fatty acid such as methyl oleate methyl palmitate, methyl laurate, isopropyl myristate, isopropyl palmitate, octyl laurate, octyl palmitate and butyl stearate gives good stability of the emulsion after it is diluted with water.