An object of the present invention is to provide a method which exerts the excellent controlling effect on a weed, without causing significant phytotoxicity on sugar cane, in a sugar cane field. According to the present invention, there is provided a method of controlling a weed in a sugar cane field, comprising applying one or more PPO-inhibiting compounds selected from the group consisting of flumioxazin, sulfentrazone saflufenacil, oxyfluorfen, fomesafen and a salt thereof oxadiazon and a compound of the formula (I): to a field before or after planting with a stem cutting of sugar cane having only one node.
