PROBLEM TO BE SOLVED: To effectively prevent the leakage and drooling of a poisonous bait for the extermination of harmful insects from an injector-type container, keep the softness of the poisonous bait and maintain high extermination effect over a long period.SOLUTION: The poisonous bait for the extermination of harmful insects contains an insecticidal component, water, a water-soluble polyhydric alcohol and gelatin. The invention further provides a method for producing a deaerated poisonous bait for the extermination of harmful insects by kneading an insecticidal component, water, a water-soluble polyhydric alcohol and gelatin under reduced pressure.COPYRIGHT: (C)2007,JPO&INPIT【課題】害虫駆除用毒餌剤が、注射器様の容器から漏れ出たり、垂れるのを有効に防止し、かつ毒餌剤の軟らかさを保持して、高い害虫駆除効果を長期間維持すること。【解決手段】殺虫成分、水、水溶性多価アルコールおよびゼラチンを含有する害虫駆除用毒餌剤。【選択図】なし