Which of the following best describes a stomach poison pesticide?

A stomach poison pesticide is specifically designed to be lethal to pests upon ingestion. This type of pesticide functions by being consumed by the pest and then acts within their digestive system. When the pest eats bait or food that has been treated with a stomach poison, the active ingredients disrupt normal physiological processes, leading to the pest's demise. This mechanism is crucial as it targets pests that feed on the treated material, ensuring that the pesticide is only effective when the pest ingests it.

The understanding of how stomach poisons work is vital for ensuring proper application and safety while also being effective in pest control strategies. Additionally, it emphasizes the importance of using such pesticides in conjunction with bait strategies, where the pests are attracted to the food source that delivers the toxic agent directly into their system. This concept is fundamentally distinct from other modes of action such as contact poisons or systemic poisons, further highlighting the specificity and targeted approach of stomach poison pesticides.