PROBLEM TO BE SOLVED: To provide an insecticide composition excellent in insecticidal performance even without using an insecticide component, and taking into consideration of environment and safety, and a method for exterminating insect pest using the composition.SOLUTION: There is provided an insecticide composition containing particles of a compound represented by the general formula (a1). R1a-O-(R3aO)p-R2a (a1), wherein R1a and R2a each independently represents a hydrocarbon group having 12 to 22 carbon atoms or an acyl group, R3a represents an alkanediyl group having 2 to 10 carbon atoms, and p is an integer of 0 to 10.SELECTED DRAWING: NoneCOPYRIGHT: (C)2020,JPO&INPIT【課題】殺虫剤成分を用いなくとも、殺虫性能に優れる、環境、安全性に配慮した殺虫剤組成物、及びそれを用いた害虫の駆除方法を提供する。【解決手段】一般式(a1)で表される化合物の粒子を含有する、殺虫剤組成物。 R1a-O-(R3aO)p-R2a (a1)[式中、R1a及びR2aは、それぞれ独立に、炭素数12以上22以下の炭化水素基またはアシル基を示し、R3aは炭素数2以上10以下のアルカンジイル基を示し、pは0以上10以下の整数である。]【選択図】なし