PROBLEM TO BE SOLVED: To provide a protective device of natural enemy insects, the device that provides an optimized habitat based on the habit of bait ticks being substitute baits of the natural enemy insects in terms of IPM, realizes growth retention of the bait ticks for a long term, and thereby improves sedentary properties of the natural enemy insects preying on the bait ticks for a long term.SOLUTION: A protective device of natural enemy insects is provided for improving sedentary properties of the natural enemy insects by maintaining growth of bait ticks of the natural enemy insects of harmful insect. The protective device of the natural enemy insects includes a body part having a sealed space inside, a storage part where the natural enemy insects and the bait ticks are stored so as to come in/out in the inside arranged in a sealed space of the body part, and a member comprising water retention materials of the sustained release moisture. In the protective device of the natural enemy insects, particularly, the sealed space is configured such that the natural enemy insects can come in and out of the outside, water may not enter the body part when sprinkled, and the humidity can be maintained at 70% or more for 30 days or more.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】IPMの見地から、天敵昆虫の代替餌である餌ダニの習性に基づき最適化された生息環境を提供し、餌ダニの長期間にわたる増殖維持を実現し、これにより餌ダニを捕食する天敵昆虫の定住性を長期間にわたって向上させた天敵昆虫の保護装置の提供。【解決手段】害虫の天敵昆虫の餌ダニの増殖を維持することで天敵昆虫の定住性を向上させた天敵昆虫の保護装置で、内部に密閉空間を有する本体部と、本体部の密閉空間に配設された、内部に天敵昆虫及び餌ダニが出入り可能に収容された収容部と、徐放湿性の保水材からなる部材とを備えてなる天敵昆虫の保護装置、特に、前記密閉空間が、天敵昆虫が外部に出入り可能で、本体部に散水した場合に水が浸入せず、且つ、その湿度が70%以上に30日間以上維持可能に構成した天敵昆虫の保護装置。【選択図】図1
