PROBLEM TO BE SOLVED: To provide a bactericidal efficacy enhancer which can improve the bactericidal efficacy of a cationic bactericide, and a liquid bactericidal composition comprising the same.SOLUTION: The present invention provides a bactericidal efficacy enhancer for a liquid bactericidal composition comprising a cationic bactericide as an active ingredient, using at least one glycol ether compound with a solubility of 1 g or more and 20 g or less in 100 g of water at 20°C.SELECTED DRAWING: None【課題】カチオン系殺菌剤の殺菌効力を向上させることができる殺菌効力増強剤、およびそれを含有する液状殺菌組成物を提供する。【解決手段】２０℃の水１００ｇに対する溶解度が１ｇ以上２０ｇ以下のグリコールエーテル系化合物の１種以上を用いた、カチオン系殺菌剤を有効成分とする液状殺菌組成物の殺菌効力増強剤。【選択図】なし
