What type of formulation is most effective for void treatment?

Dust formulations are particularly effective for void treatment because they can penetrate into cracks, crevices, and other hard-to-reach areas where pests often hide or nest. The dry particles of dust can adhere to surfaces and remain effective for extended periods, allowing them to control pest populations within voids and inaccessible spaces. Once introduced into these areas, the dust can be disturbed by pest movement, which helps in the transfer of the active ingredients to the pests themselves.

In contrast, liquid sprays may not adequately reach deep into voids, as they often run off or do not provide long-lasting effects in hidden areas. Granular formulations are generally used for treating soil or outdoor settings and are not as effective in enclosed spaces. Gel baits are useful for attracting certain pests, particularly ants and cockroaches, but they might not effectively address larger infestations within voids where the pests may not easily access the bait. This makes dust formulations the most suitable choice for targeting pests in voids effectively.