The present invention control target pests inhabit, namely pests release pest repellents in the development or life to stagnant water itself, the pest repellent from the water surface of Mari water strive to water repellent and water repellent in Mari water the provision of pest control tool for achieving even a spatial repellency against pests inhabit flies in the vicinity of the reservoir water was evaporated. A pest control device 1 comprises a housing 2 for accommodating the pest repellent 4 liquid liquid passing part 5 of porous material in the whole portion or a portion of the base member 3 defining the housing 2 is formed, vent liquid section 5 is release the pest repellents 4 in the water through the liquid passing part 5 when flooded, and to control pests that live in stagnant water or waterfront that.BACKGROUND 2【課題】 防除対象の害虫が生息、即ち害虫が発生又は生活する溜まり水自体に害虫忌避剤を放出し、該溜まり水における水中忌避や水面忌避を図ると共に該溜まり水の水面から害虫忌避剤を蒸散して溜まり水の周辺に生息し飛翔する害虫に対し空間忌避をも図る害虫防除具の提供。【解決手段】 害虫防除具1は、液体の害虫忌避剤4を収容する収容部2を備え、該収容部2を画成する基体3の全部分又は一部分に多孔質材料から成る通液部5を形成し、該通液部5が浸水した際に同通液部5を通じて上記害虫忌避剤4を水中に放出し、溜まり水又はその水辺で生息する害虫を防除する。【選択図】 図2
