To provide a pesticidal composition which has a wide pesticidal spectrum, is highly active and capable of reducing the amount of the active ingredient to be applied and has a long-lasting effect. Also provided is a method for controlling pests. The pesticidal composition comprises, as active ingredients, (A) at least one organic phosphorus compound selected from the group consisting of fosthiazate, imicyafos and cadusafos, and (B) fluensulfone. The method for controlling pests, comprises applying respective effective amounts of the above (A) and (B).
