PROBLEM TO BE SOLVED: To further improve the knockdown effect of a pest control agent.SOLUTION: Multiple hydrophilic nanoparticles or biopolymers are attached onto particles of an oily pest control agent, and the oily pest control agent particles are emulsified and dispersed in aqueous liquid.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】害虫駆除剤のノックダウン効果をより一層高める。【解決手段】多数の親水性ナノ粒子またはバイオポリマーが油性害虫駆除剤の粒子表面に付着して該油性害虫駆除剤が水性液体中に乳化分散している。【選択図】なし