PROBLEM TO BE SOLVED: To provide a method for controlling, without generating chemical injury to paddy rice, Delphacidae which is a hardly-controllable pest damaging paddy rice and having resistance acquired against an existing pesticide and/or Delphacidae which is pesticide-sensitive, especially brown planthopper.SOLUTION: In a control method of a drug resistant pest and/or a sensitive pest, one or more kinds of insecticidal compounds selected from isoprothiolane, buprofezin, imidacloprid, nitenpyram and fenobucarb (BPMC) which are each well-known germicide are foliar-treated simultaneously, or after treating one germicide, another germicide is foliar-treated to paddy rice at an interval of one day to two months.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】水稲に対して薬害を生じさせることなく、既存の殺虫剤に抵抗性を獲得した水稲に加害する難防除害虫であるウンカ類及び/又は殺虫剤感受性のウンカ類、特にトビイロウンカの防除方法の提供。【解決手段】殺菌剤として知られているイソプロチオランと、ブプロフェジン、イミダクロプリド、ニテンピラム又はフェノブカルブ(BPMC)から選択される1種以上の殺虫化合物とを同時に、又は1薬剤を処理した後、1日乃至2ヵ月の期間をおいて他の1薬剤を、水稲に茎葉処理する薬剤抵抗性害虫及び/又は感受性害虫の防除方法。【選択図】なし
