To provide a novel herbicide which has a wide range of applications to agricultural or non-agricultural fields and various methods for application such as soil treatment and foliage treatment and which exhibits excellent herbicidal effects. A herbicide containing a benzoylpyrazole compound represented by the formula (I) or its salt, as an active ingredient: wherein R1 is alkyl or cycloalkyl, R2 is a hydrogen atom or alkyl, R3 is hydroxy, R4 is alkyl, haloalkyl or the like, R5 is halogen, cyano, cyanoalkyl or the like, and R6 is haloalkyl, halogen or the like.
