PROBLEM TO BE SOLVED: To provide insecticidal facilities and method by carbon dioxide gas collectively destroying insect pests on plants such as strawberries on a massive scale without resort to agrochemicals.SOLUTION: The insecticidal facilities: have such a structure that is tightly closed by an airtight opening/closing door such as an airtight fastener and a water seal system and allows take-in/out of the plant include a carbon dioxide gas injection opening/closing port at the lower part and a deflation opening/closing port at the upper part, and an internal gas circulation fan comprises bags, containers, and chambers made of a material that does not permeate the carbon dioxide gas, and, when being tightly closed, little exchange gas between the inside and the outside. The insecticidal method using the insecticidal facilities includes: when destroying insect pests, setting the facilities inside temperature within a prescribed temperature using a thermoregulator placing plants in the facilities and tightly closing the facilities injecting the carbon dioxide gas from the carbon dioxide injection opening/closing port provided at the lower part accumulating the carbon dioxide gas at the lower part after exhausting air from the deflation opening/closing port in the upper part, closing the deflation opening/closing port to uniformize the concentration of the carbon dioxide gas using the internal gas circulation fan and destroying the insect pests for a prescribed time while retaining the carbon dioxide gas concentration and the temperature within a prescribed concentration range and within a prescribed temperature range.COPYRIGHT: (C)2014,JPO&INPIT【課題】 イチゴ苗等の植物についた害虫を化学農薬に頼らず、大量に一括処理する炭酸ガスによる害虫殺虫用設備と方法を提案する。【解決手段】 気密ファスナーや気密可能な開閉扉や水封方式により密閉でき植物の出し入れが可能な構造で、下部に炭酸ガス注入用開閉口と上部に空気抜き用開閉口を持ち、内部ガス循環用ファンを有し、炭酸ガスを透過しない素材で作られた袋や容器や部屋からなり密閉時には内部と外部のガスの交換が少ない害虫殺虫用設備を使用して、害虫殺虫時は温度調整器を用いて設備内部温度を所定温度範囲内となるよう設定し、設備内に植物を置き密閉し、炭酸ガスを下部にある炭酸ガス注入用開閉口から注入し、炭酸ガスを下部に溜めて、空気を上部にある空気抜き用開閉口より排出後
