Which type of pesticide formulation is mixed with water before being added to the spray tank?

Wettable powders are pesticide formulations that require mixing with water before being added to the spray tank. These formulations consist of solid particles that do not dissolve in water but can be suspended when mixed properly. As the spray mixture is agitated, the wettable powder forms a uniform suspension, allowing effective application onto surfaces. This preparation ensures that the pesticide can be easily distributed over the target area and maximizes adherence to plant surfaces.

Choosing this type of formulation allows for effective pest control due to its ability to coat surfaces thoroughly. Proper mixing and agitation are necessary for maintaining suspension in the tank, which ensures an even application and optimal efficacy. The characteristics of wettable powders make them suitable for various application methods, including foliar sprays, where uniform coverage is essential.

Other formulations like emulsifiable concentrates, granulars, and soluble powders have different properties and mixing requirements, which may not involve creating a suspension for effective application. For instance, emulsifiable concentrates form stable emulsions when mixed with water, while granular formulations are spreadable solids that do not require mixing with water. Soluble powders dissolve in water rather than form a suspension. Understanding these differences is crucial when selecting the appropriate pesticide formulation for specific application needs.