The present invention relates to an insect pest control product that is applicable to a water-based insecticidal composition and can exert stable performance over a long period of time. the insect pest control product comprises a vaporization / thermal diffusion absorbent wick for the vaporization and diffusion of a water-based insecticidal composition containing a pyrethroid insecticide component having a vapor pressure of 2 × 10-4 to 1 × 10 -2 mmhg (0.03 pa to 1.33 pa) at 30 ° C, a glycol ether compound having a boiling point of 150 to 300 ° C and water. the vaporization / thermal diffusion absorbent wick has a water / oil based liquid absorption ratio (v1 / v2) within the range of 0.55-1.0, where a water based liquid absorption ratio / Oil (v1 / v2) is calculated from a velocity (v1) at which a water-based liquid formulation rises through the vaporization / thermal diffusion absorbent wick when a lower part of the vaporization / thermal diffusion absorbent wick is immersed in the oil. water-based liquid formulation and a velocity (v2) at which an oil-based liquid formulation rises through the vaporization / thermal diffusion absorbent wick when a lower part of the vaporization / thermal diffusion absorbent wick is immersed in the liquid based formulation where a water-based liquid formulation is an aqueous solution containing 40 mass% diethylene glycol monobutyl ether and an oil-based liquid formulation is a fluid paraffin having 14 carbon atoms.a presente invenção refere-se a um produto de controle de insetos-praga que é aplicável a uma composição inseticida à base de água e pode exercer desempenho estável durante um longo período de tempo. o produto de controle de insetos-praga compreende um pavio absorvente de vaporização/difusão térmica para a vaporização e difusão de uma composição inseticida à base de água contendo um componente inseticida piretroide tendo uma pressão de vapor de 2 × 10-4 a 1 × 10-2 mmhg (0,03 pa a 1,33 pa) a 30°c, um composto de glicol éte
