A herbicide composition contains, as a component A, one or more compounds selected from the group consisting of specific isoxazoline derivatives represented by the general formula [I] (wherein R1 to R4 represent each a hydrogen atom, an alkyl group, etc. and Q represents —S(O)n—(CR5R6)m—, wherein n is an integer of 0 to 2, m is an integer of 1 to 3, and R5 and R6 represents each an alkyl group, etc.) and salts thereof and, as a component B, a cyclohexanedione type compound, a phenylpyrazoline type compound or a sulfonyl aminocarbonyl triazine type compound and the like as the active ingredients.
