Be able to use safely, the local insecticide which at the same time can evade many common harmful side effects of the usual local insecticide is offered. This insecticide includes the insecticide and the insect growth regulator which are effective in order to kill the larva of the chisel and the chisel and the egg of the chisel (IGR). Manufacturing the insecticide N-okuchiru pyrolidone and/or insecticidal characteristic (tetrahydrofolic - 3 - huraniru) the methyl amino derivative and the insect growth regulator (IGR) by melting in the solvent which contains N-mechiru pyrolidone, it raises the melting power of the IGR component, it offers the insecticide which possesses high insecticidal activity as the result.< Selective figure >It is not安全に使用でき、かつ通常の局所殺虫剤の多くの共通の有害な副作用を回避できる局所殺虫剤を提供する。本殺虫剤は、ノミ、ノミの幼虫及びノミの卵を殺すために有効な殺虫剤と昆虫成長レギュレーター(IGR)を含む。N-オクチルピロリドン及び/又はN-メチルピロリドンを含有する溶媒に殺虫性の(テトラヒドロ-3-フラニル)メチルアミノ誘導体と昆虫成長レギュレーター(IGR)を溶かすことによって殺虫剤を調製してIGR成分の溶解力を高め、その結果として高い殺虫活性を有する殺虫剤を提供する。【選択図】なし