PROBLEM TO BE SOLVED: To provide a smoke type insecticidal agent that is low in contamination, that a user can feel the effectiveness visually, and of which the volatility of the insecticidally active component is high.SOLUTION: A smoke type insecticidal agent that contains (A) component : insecticidally active component, (B) component : polyol, and (C) component : one or more selected from the group consisting of ascorbic acid type compound and glucuronolactone or the like, and that is characterized in that the weight ratio represented by ((B) component + (C) component)/(A) component is 0.5 to 3.5. Also a smoke type insecticidal device in that the smoke type insecticidal agent is housed and that is provided with a heating means to heat the smoke type insecticidal agent.
