(57) [summary] An object of the present invention is using the perillaldehyde that is included in the perilla oil to be purified, necessary and sufficient insect repellent effect, the object of the present invention to provide a rice bin insect tool to effectively exhibit the antifungal effect. The invention relates to accommodating the liquid impregnated member impregnated with an agent composed mainly of perillaldehyde ventilation case, the ground plane of the vent temper case was adhered a double-sided pressure-sensitive adhesive sheet with a release paper on one side and rice bin In insect instrument, the breathable casing are mutually consists disengageably substrate 2 and the lid member 1 Tokyo lid member 1 has a vent hole 10, the inner surface of the cover member 1 at both ends below the vent pores 10 It is connected to, along with the provision of the shape and substantially the same shape of the foreign matter prevention section 11 of the vent hole 10, the vent hole 1 0 and rice bin insect device which is characterized by forming the ventilation gap 16 between the foreign matter prevention part 11, and a solution.
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