PROBLEM TO BE SOLVED: To solve the problems that, since spider mite has high adaptability, resistivity is generated each time to an eliminator, and the medicine stops working, further, a highly toxic pesticide exerts a bad influence on a spraying operator.SOLUTION: A spider mite extermination device includes a cylinder 14 for supplying carbon dioxide 12, a container 21 for storing bitter aqueous solution 20, a mixing device 18 for mixing fine bubbles of carbon dioxide 12 supplied from the cylinder 14 into the bitter aqueous solution 20, and a distribution nozzle 22 for taking out mixed liquor 24 from the container 21 and spraying it. Spider mite can be exterminated by synergy effect between the bitter aqueous solution and the carbon dioxide.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】ハダニは適応性が高く、その都度、駆除剤に対して抵抗性が出てきて、薬が効かなくなってしまう。毒性の強い農薬は撒布する作業者にも悪影響がある。【解決手段】炭酸ガス１２を供給するボンベ１４と、ニガリ水溶液２０を収容した容器２１と、ボンベ１４から供給された炭酸ガス１２のファインバブルをニガリ水溶液２０中に混入させる混合装置１８と、その混合液２４を容器２１から取り出して噴霧する撒布ノズル２２とを備えたことを特徴とするハダニ駆除装置。ニガリと炭酸ガスの相乗効果でハダニを駆除できる。【選択図】図１
