PROBLEM TO BE SOLVED: To provide a repellent for annelid worms excellent in persistency, having safety like a material derived from natural product, capable of expecting reduction of environmental load.SOLUTION: The invention provides an anionic repellent for annelid worms comprising one or more kinds of materials selected from surfactants which are vegetable oils or fats and derivatives of vegetable oils or fats and a method for repelling annelid worms.COPYRIGHT: (C)2007,JPO&INPIT【課題】 持続性に優れ、天然物由来のように安全性があり、且つ環境負荷の低減が期待できる環形動物の忌避剤を提供すること。【解決手段】 植物性油脂および植物性油脂の誘導体で界面活性剤の中から選択される1種または2種以上を有効成分とするアニオン系環形動物の忌避剤、および環形動物の忌避方法。
