PROBLEM TO BE SOLVED: To provide a gel insecticide and an insecticide tool having an aqueous gel as a base material and capable of exhibiting constantly insecticidal effect for a long period.SOLUTION: The gel insecticide is composed of an aqueous gel composition containing 0.1-5 wt.% of a gelling agent, 5-65 wt.% of glycerol, and an aqueous solvent and further an insecticide component. The insecticide tool has a constitution in which by filling the gel insecticide 1 in a flat shaped container 3 having an open top, the gel insecticide is exposed over the whole open surface 2 of the container. While the surface shrinkage of the gel by water evaporation is highly suppressedand, then the gel is reduced only in the thickness even when left being filled in the open container thereby the surface area is kept as it is.COPYRIGHT: (C)2012,JPO&INPIT【課題】長期間にわたって安定的に殺虫効果を発揮できる、水性ゲルを基材としたゲル状殺虫剤および殺虫用具を提供する。【解決手段】ゲル化剤を0.1~5重量%、グリセリンを5~65重量%、及び水性溶媒を含有し、殺虫成分をさらに含有する水性ゲル組成物からなるゲル状殺虫剤、並びにゲル状殺虫剤1を上方が開放した平型形状の容器3に充填することにより、前記容器の開放面2全体にわたって前記ゲル状殺虫剤が露出され、水分の蒸発によるゲルの表面収縮が高度に抑制され、上面が開放した容器に充填した状態で放置しても厚みが減少するにとどまり、表面積はそのまま維持される殺虫用具。【選択図】図1