How do fumigants typically kill pests?

Fumigants are specially formulated chemicals that work primarily by being absorbed through the skin or inhaled by pests. This mode of action is effective because fumigants, in their gaseous or vapor form, penetrate materials such as soil, wood, or food products, allowing them to reach pests where they reside. Once entered, the fumigants disrupt critical biological functions, leading to the pest's death.

This method of pest control is particularly advantageous because it can target a wide range of pests and their life stages, including insects and rodents, without requiring direct contact through ingestion. This generality and efficacy make fumigants a powerful tool in pest management strategies.