What is the purpose of an anti-coagulant in pest control?

The purpose of an anti-coagulant in pest control is to cause internal bleeding in rodents. Anti-coagulants are a type of rodenticide that disrupt the normal clotting process of blood, leading to uncontrolled bleeding within the body. This method is particularly effective against pests like rats and mice because it can lead to death over a period of time after ingestion, allowing rodents to remain active and continue feeding, which increases the chances of exposure to the poison.

The action of these substances targets the blood’s ability to coagulate, ultimately impairing the rodents' circulatory system. This mechanism not only makes anti-coagulants highly effective but also necessitates careful handling and application to reduce risks to non-target species and ensure safety for humans and the environment.