PROBLEM TO BE SOLVED: To provide a chemical volatilization apparatus capable of forming a barrier space of a volatile chemical in the periphery by volatilizing a high dose of the volatile chemical in a short period within 12 hours, and capable of preventing entry of flying insect pests into the space.SOLUTION: In the chemical volatilization apparatus, the volatile chemical is volatilized by blowing air by a fan to a chemical carrier which carries the volatile chemical. 10-70 mg of the volatile chemical is carried in the chemical carrier, and the quantity of volatilized chemical per hour is at least 0.7 mg/h. At least 50% of the quantity of the carried chemical is volatilized in 12 hours from the start of use to form the barrier space with the volatile chemical in the periphery of the apparatus to prevent entry of flying insect pests into the space. Preferably, the chemical carrier is the one carrying the volatile chemical on a latticed or net-like fiber structure made of non-textured polyester fiber.COPYRIGHT: (C)2012,JPO&INPIT【課題】12時間以内の短時間に高薬量の揮散性薬剤を揮散させてその周囲に揮散性薬剤のバリア空間を形成し、飛翔害虫のこの空間への侵入を阻止しうる薬剤揮散装置の提供。【課題の解決手段】揮散性薬剤が担持された薬剤担持体にファンによる風を当てて前記揮散性薬剤を揮散させる薬剤揮散装置において、前記薬剤担持体に前記揮散性薬剤を10~70mg担持させると共に、1時間当たりの薬剤揮散量を0.7mg/h以上となし、かつ、使用開始から12時間以内に担持量の50%以上を揮散させてその周囲に前記揮散性薬剤のバリア空間を形成し、飛翔害虫のこの空間への侵入を阻止するようになした薬剤揮散装置。前記薬剤担持体は、テクスチャード加工されていないポリエステル系繊維の格子状もしくは網状繊維構造体に前記揮散性薬剤を担持させたものが好ましい。【選択図】なし
