What does “fumigation” involve in pest control?

• A. Applying a solid substance to eliminate pests
• B. Using a gas in a confined space to eliminate pests
• C. Spraying a liquid pesticide outdoors
• D. Setting traps for pests

Answer: (B)

Fumigation involves the use of gaseous pesticides or fumigants in a confined space to eliminate pests. This method creates a gas that can penetrate areas that are typically difficult to reach with other pest control methods, ensuring complete eradication of infestations. This makes fumigation particularly effective for controlling pests such as termites, bed bugs, and other insects that may be hiding within structures or stored products.

The other methods mentioned in the choices are effective pest control strategies but do not describe fumigation correctly. Applying a solid substance typically refers to granular pesticides, which are used on surfaces or in soil, but do not involve gas or enclosed environments. Spraying liquid pesticides is another common method, but it operates differently by targeting pests on contact rather than using gas. Lastly, setting traps involves physically capturing pests rather than using a gaseous method, which is the hallmark of fumigation. Thus, understanding the specific application of gaseous substances in pest management highlights the unique nature of this pest control technique.