What best describes a wettable powder formulation?

Wettable powder formulations are a type of pesticide product designed to disperse in water rather than dissolve completely. When mixed with water, wettable powders create a suspension rather than a solution, allowing them to remain suspended in the water rather than settling out. This is key for effective application, as it ensures that the active ingredients can effectively reach the target pests.

These formulations consist of finely ground particles that require agitation to ensure an even distribution in the mixture prior to application. It's important to note that while they do not dissolve like some other formulations, they are specifically intended to be mixed with water and remain suspended throughout use.

The other choices describe different characteristics not pertaining to wettable powders. For example, forming a gel is associated with certain types of formulations, while not mixing with water characterizes non-wettable powders or granules. Formulations requiring heating typically apply to another class of pesticides, not wettable powders.