Problem to be solved: to provide a repellent repellent having low soil contamination and toxicity and excellent resistance inducing effect and insect repellent effect, and a manufacturing method thereof. A method of producing an insect repellent containing fatty acid metabolites, including a pest repellent containing fatty acid metabolites obtained by metabolizing fatty acids to Proteobacteria, and a fatty acid metabolic process that metabolizes fatty acids to proteobacteria.土壌汚染や毒性が低く、抵抗性誘導効果および害虫忌避効果に優れた害虫忌避剤、およびその製造方法を提供する。脂肪酸をプロテオバクテリアに代謝させることで得られる脂肪酸代謝物を含む害虫忌避剤、および脂肪酸をプロテオバクテリアに代謝させる脂肪酸代謝工程を含む、脂肪酸代謝物を含む害虫忌避剤の製造方法。
