Which formulation is a granular pesticide that forms a suspension when mixed with water?

The correct formulation that represents a granular pesticide which forms a suspension when mixed with water is the dry flowable. Dry flowables are typically made up of solid pesticide particles that are designed to dissolve in water when mixed, creating a suspension that can be applied effectively. This allows for easier application and better adherence to the target surface or pest, promoting efficient pest control.

In contrast, dust formulations are designed to be applied as a powder and do not form a suspension. Emulsifiable concentrates, while liquid formulations that mix with water to produce an emulsion, are not granular in nature. The term "economic threshold" refers to a pest management concept rather than a formulation type, indicating the point at which the cost of pest damage exceeds the cost of control measures. Therefore, the dry flowable is accurately identified as the granular formulation that forms a suspension upon mixing with water.