The present invention provides a compound having an excellent efficacy for controlling weeds. A cyclohexanone compound of the formula (I): wherein m is an integer of 1, 2 or 3； n is an integer of any one of 1 to 5； X represents CH2, O, S, S(O) or S(O)2； R1 represents a hydrogen atom or a methyl group； R2 and R3 represents a hydrogen atom, a C1-6 alkyl group and the like； R4 represents a C6-10 aryl group or a five- to six-membered heteroaryl group； G represents a hydrogen atom and the like； Z represents a halogen atom, a cyano group, a nitro group, a phenyl group, a C1-6 alkyl group and the like； is useful as an active ingredient for herbicides.
