A composition for controlling pests comprising a compound represented by the formula (1): wherein each of symbols are the same as defined in the Description, or N-oxide thereof； and 4-oxo-4-[(2-phenylethyl)amino]-butyric acid. A method for controlling pests that has a step of applying an effective amount of the composition for controlling pests to plants, plant seeds, bulbs, or soil where plants grow. The composition for controlling pests and the method for controlling pests exhibit excellent controlling efficacy on pest.
