Which method is best for treating structural voids for pest control?

The best method for treating structural voids for pest control is through the use of dust, foam, and ULV (Ultra-Low Volume) aerosol formulations. This approach is effective because these types of treatments can penetrate hard-to-reach areas and provide long-lasting residual protection against pests.

Dusts can adhere to surfaces within voids and cracks, effectively targeting pests like ants and termites that may be hiding. Foam formulations expand upon application, filling voids and gaps, allowing for coverage in areas that are difficult to reach, while also providing localized treatment. ULV aerosols, on the other hand, can deliver a fine mist that disperses evenly throughout a space, ensuring thorough coverage without excessive material usage.

In contrast, other methods such as liquid sprays may not penetrate into structural voids effectively, and traps and pheromones are primarily used for monitoring and capturing pests rather than for treating infestations within permanent structures. Granular treatments are more suitable for outdoor applications and may not provide the sufficient penetration needed for voids within structures. Thus, dust, foam, and ULV aerosol formulations are the most effective options for addressing pest problems in structural voids.