MANY HERBICIDAL COMPOSITIONS HAVE BEEN DEVELOPED AND ARE PRESENTLY USED. HOWEVER, WEEDS TO BE CONTROLLED ARE VARIOUS IN TYPES AND THEIR EMERGENCE EXTENDS OVER A LONG PERIOD. ACCORDINGLY, IT IS DESIRED TO DEVELOP A HERBICIDAL COMPOSITION WHICH HAS A BROAD HERBICIDAL SPECTRUM, A HIGH ACTIVITY AND A LONG-LASTING EFFECT. THE PRESENT INVENTION PROVIDES A HERBICIDAL COMPOSITION COMPRISING (A) FLAZASULFURON OR ITS SALT AND (B) AT LEAST ONE PROTOPORPHYRINOGEN OXIDASE INHIBITOR SELECTED FROM THE GROUP CONSISTING OF A PHENYLPYRAZOLE COMPOUND, A TRIAZOLINONE COMPOUND, A N-PHENYLPHTHALIMIDE COMPOUND, A PYRIMIDINDIONE COMPOUND, AN OXADIAZOLE COMPOUND, AN OXAZOLIDINEDIONE COMPOUND, A THIADIAZOLE COMPOUND, PYRACLONIL, PROFLUAZOL, FLUFENPYR-ETHYL AND THEIR SALTS. ACCORDING TO THE PRESENT INVENTION, A HERBICIDAL COMPOSITION WHICH HAS A BROAD HERBICIDAL SPECTRUM, A HIGH ACTIVITY AND A LONG-LASTING EFFECT CAN BE PROVIDED.
