Continuous mosquito-repellent incense

The present invention provides a sustained mosquito-repellent incense which can reduce irritation during combustion and can sustain an insecticidal effect for a long period of time even if the mosquito-repellent incense is combusted for a short period of time. The present invention is a persistent mosquito-repellent incense having a persistent insecticidal effect even after combustion, the persistent mosquito-repellent incense containing: at least one insecticidal component selected from the group consisting of trifluthrin, perfluthrin, and transfluthrin; and a carbide base material having an iodine adsorption capacity of 200 mg/g or less, the amount of volatilization of the insecticidal component per unit time during combustion being 0.05-15 mg/min, and the combustion time being 30 minutes or less. 本发明提供一种在降低燃烧时的刺激的同时，即使为短时间的燃烧也可长时间持续杀虫效果的持续性线蚊香。本发明为即使在燃烧后，杀虫效果也持续的持续性线蚊香，其含有：选自由甲氧苄氟菊酯、丙氟菊酯及四氟苯菊酯组成的组中的至少一种的杀虫成分；和碘吸附能力为200mg/g以下的碳化物基材，将燃烧时的杀虫成分的每单位时间的挥散量设定为0.05～15mg/分钟，将燃烧时间设定为30分钟以内。