Pest Control Technician Practice Exam 2025 - Free Pest Control Practice Questions and Study Guide

Question: 1 / 400

How do desiccants kill insects?

By poisoning their food source

By disrupting their protective body coating

Desiccants kill insects primarily by disrupting their protective body coating. Insects have an outer layer that helps retain moisture, preventing dehydration. When a desiccant is applied, it absorbs the moisture from the insect's body, leading to dehydration and ultimately death. This process is particularly effective because insects are typically small and have a high surface area-to-volume ratio, making them more susceptible to moisture loss.

Desiccants do not typically poison the insect's food source, so that option does not directly relate to how these substances function. Additionally, desiccants do not increase internal fluid levels or alter reproductive systems; their primary mechanism is to draw moisture away from the insect's body, causing physical disruption rather than physiological changes in other systems.

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By increasing their internal fluid levels

By altering their reproductive systems

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