Which of the following best describes dust formulations?

• A. A liquid concentrate
• B. A high-activated liquid
• C. A ready-to-use solid with high active content
• D. A ready-to-use solid with low active content

Answer: (D)

Dust formulations are dry, free-flowing powders that are ready to use right out of the container. They consist of a small amount of active ingredient dispersed in an inert carrier, designed to be dusted onto surfaces, into cracks, crevices, and voids where pests hide. The low active content is intentional: it provides broad, even coverage, keeps safety risks and potential material damage low, and makes the product more cost-effective since you can treat larger areas with a modest amount of active material. Because they’re solids, there’s no need to mix with water, and their dry nature suits crack-and-crevice work where pests tend to crawl.