PROBLEM TO BE SOLVED: To provide a method of enhancing a pest attracting effect of a pest attractant itself.SOLUTION: A method of enhancing a pest attracting effect of an attractant comprises the step of adding lactate to an attractant for pests.COPYRIGHT: (C)2015,JPO&INPIT【課題】害虫誘引剤による害虫誘引効果自体を増強する方法を提供すること。【解決手段】害虫の誘引剤に乳酸エステルを添加する工程を含む、誘引剤による害虫誘引効果の増強方法。【選択図】なし