What type of pesticide formulation forms a suspension when mixed with water?

The correct answer is the dry flowable formulation. This type of pesticide formulation consists of small granules that dissolve in water to create a suspension. When mixed with water, dry flowables form a mixture where the pesticide particles are suspended throughout the liquid. This allows for even distribution when applied, making it effective for pest control.

Granular formulations consist of solid particles that are often used for soil application, but they do not form a suspension in water. Liquid concentrates are already in liquid form and do not require mixing dry compounds to create a suspension. Emulsifiable concentrates are mixes of oil and water that form emulsions rather than suspensions when mixed; they rely on emulsifiers to create stable mixtures rather than suspending solid particles. Each option has distinct characteristics that differentiate it from dry flowables, emphasizing the unique nature of the suspension formed by that specific formulation.