Which of the following is NOT a dry formulation of pesticides?

Flowables are not considered a dry formulation of pesticides. Instead, they are a liquid formulation that contains active ingredients suspended in liquid carriers. This allows for easy application, often by mixing with water and using sprayers. Flowables are used for a variety of pest management needs, as they can more readily adhere to plant surfaces and penetrate plant tissues.

On the other hand, dusts, granules, and wettable powders are all classified as dry formulations. Dusts consist of fine particles that can be applied directly to plants and surfaces. Granules are larger particles that can be applied to the soil or plant surfaces for slow release of the active ingredient. Wettable powders, while they are mixed with water before application, remain as solid formulations until they dissolve in the liquid, making them part of the dry category prior to mixing. Thus, flowables stand apart from these other options as a liquid formulation, validating why it is the correct answer to the question.