PROBLEM TO BE SOLVED: To provide an insect repellent capable of maintaining a long period of time without impairing the commercial property, since the adsorption of a pyrethroid compound to an olefin resin is small even in a sealed state, the reduction of an active ingredient can be prevented. SOLUTION: An adsorption-inhibiting insect repellent composition containing a room temperature volatile pyrethroid and an ester compound represented by the following formula (1), an insect repellent prepared by storing the composition in a container made of an olefin resin, and An insect repellent product obtained by covering and containing the insect repellent with a resin-made packaging sheet having an internal heat-sealing property. Embedded image (R1 is an optionally branched alkyl group having 8 to 18 carbon atoms, and R2 is an optionally branched alkyl group having 1 to 5 carbon atoms) [Selection Diagram] FIG.【課題】密封状態においても、ピレスロイド系化合物のオレフィン系樹脂に対する吸着が少なく、有効成分の減少を防止でき、商品性を損ねることなく長期間にわたって持続できすることができる防虫剤の提供。【解決手段】常温揮散性ピレスロイドおよび下記式（１）のエステル化合物を含有する吸着抑制型防虫剤組成物、この組成物をオレフィン系樹脂を用いて構成された容器に収納してなる防虫剤及び当該防虫剤を、内面がヒートシール性の樹脂製包装シートで被覆・収納してなる防虫剤製品。【化１】（Ｒ１は炭素数８～１８の分岐していてもよいアルキル基、Ｒ２は炭素数１～５の分岐していてもよいアルキル基）【選択図】図３
