What is the primary function of fumigation in pest control?

Fumigation is primarily used in pest control to eradicate pests in enclosed spaces through the application of gaseous pesticides, known as fumigants. This method is highly effective because the gases can penetrate materials and reach areas that liquid or solid pesticides cannot, ensuring a thorough treatment. Fumigation targets various pests, including insects, rodents, and fungi, and is commonly used in structures like homes, warehouses, and shipping containers.

The effectiveness of fumigation hinges on the ability of the gas to fill the entire space, providing even distribution and the opportunity to eliminate pests that may be hiding in hard-to-reach areas. This method is particularly useful for large infestations and can address multiple species simultaneously.

Other options refer to concepts that don't align with the specific purpose of fumigation. For example, eradicating pests in open fields relates more to cultural or mechanical control methods, while providing a barrier against pests is about preventative measures rather than eradication. Attracting beneficial insects is a separate strategy focused on maintaining ecological balance and does not pertain to the eradication goals of fumigation.