What type of pesticide formulation is a dry powder that forms a suspension in water?

The correct answer is that a wettability powder is a dry powder formulation specifically designed to create a suspension when mixed with water. This type of pesticide formulation is designed to have properties that enhance its ability to disperse evenly throughout the water, allowing for better coverage and application.

Wettability powders, often referred to in pest management as wettable powders, contain active ingredients that must become suspended in water to be effective. When water is added, these powders can fully mix and create a uniform solution that facilitates optimal pest control through their application.

In contrast, granular formulations contain solid particles that do not dissolve in water, and emulsifiable concentrates are liquid formulations that require emulsification with water. A wetting agent is typically an additive used to improve the spreading and sticking of pesticides on surfaces rather than being a pesticide formulation itself. Thus, the classification of a wettability powder as a dry powder that forms a suspension in water is what makes it the correct answer.