Which statement about a common dust formulation is true?

• A. Must be mixed with water before use
• B. Is a liquid formulation
• C. Is normally ready-to-use and contains a low percentage active ingredient
• D. Requires refrigeration

Answer: (C)

Dust formulations are dry powders you apply as-is, without mixing with water. They’re packaged to be ready-to-use and are designed to be spread into cracks, crevices, and other hard-to-reach places where pests hide. Because they use an inert carrier and only a small amount of active ingredient, they stay effective while keeping chemical exposure lower. They are not liquids, so no mixing and no refrigeration are needed. This combination—dry, ready-to-use product with a low percentage of active ingredient—matches how dust formulations are actually used in pest control.