What type of herbicide formulation is a finely ground powder that can be suspended in water?

A wettable powder (WP) is a herbicide formulation that consists of finely ground particles that can be suspended in water to create a sprayable solution. This type of formulation is designed to be mixed with water, allowing the active ingredients to disperse evenly in the liquid. When mixed properly, a WP provides effective coverage on targeted weeds, making it highly convenient for application in turf and ornamental settings.

This formulation type is particularly beneficial because it allows for precise targeting and application. The particles remain in suspension due to surfactants present in the formulation, which helps to prevent them from settling at the bottom of the mixing tank. This characteristic is essential for ensuring that the product remains effective during application, as it provides a consistent dosage and distribution of the herbicide.

Wettable powders also tend to be more stable than some other formulations and can often have a longer shelf life, which is an added advantage for users. In contrast, granular formulations are solid and typically applied dry, while liquid concentrates and emulsifiable concentrates are ready-to-use solutions that do not require mixing with water.