To provide a pest control product that can be applied to water-based pesticide composition that is stable for a long period of time. A pest control product comprising a liquid-absorbing wick for the heat-transpiration of a water-based pesticide composition containing a pyrethroid-based insecticidal component having a vapor pressure of 2×10<；SP>；-4<；/SP>； to 1×10<；SP>；-2<；/SP>； mmHg at 30 DEG C, and a glycol ether-based compound and/or an ethylene glycol-based compound having a boiling point of 150 to 300 DEG C, and water. The concentration ratio of the pyrethroid-based insecticidal component of the liquid absorbing wick for heat-transpiration to the compound is in the range of 1.2 to 6.0, where P1 is defined as the weight percentage of the pyrethroid-based insecticidal component of the liquid absorbing wick for heat-transpiration to the glycol ether-based compound and/or the ethylene glycol compound after use, and P2 is defined as the weight percentage of the pyrethroid-based insecticidal component of the liquid absorbing wick for heat-transpiration to the glycol ether-based compound and/or the ethylene glycol compound before use.提供一種可適用於可持續很長的期間持續發揮穩定的性能之水性殺蟲劑組成物之害蟲防除製品。 一種害蟲防除製品，包含用以使含有如下的成分之水性殺蟲劑組成物蒸散的加熱蒸散用吸液芯：30℃下的蒸氣壓為2×10-4~1×10-2mmHg之擬除蟲菊酯系殺蟲成分，與沸點為150~300℃之乙二醇醚系化合物及/或乙二醇系化合物，與水，由包含於使用後的加熱蒸散用吸液芯的擬除蟲菊酯系殺蟲成分與乙二醇醚系化合物及/或乙二醇系化合物的重量比率(P1)，及包含於使用前的水性殺蟲劑組成物的擬除蟲菊酯系殺蟲成分與乙二醇醚系化合物及/或乙二醇系化合物的重量比率(P2)求出之加熱蒸散用吸液芯中的殺蟲成分/化合物濃縮比率(P1/P2)為1.2~6.0的範圍。
