Which type of dry/solid pesticide formulation consists of particles that are uniform in shape and weight?

The correct choice is pellets, which are a type of dry pesticide formulation characterized by their uniform shape and weight. Pellets are manufactured to ensure consistency in size and density, which is crucial for effective application and performance. This uniformity allows for even distribution when applied, leading to more efficient pest control, as the active ingredients are delivered consistently throughout the treated area.

In contrast, granules typically have a more irregular shape and can vary in size and weight. Powders tend to be finer and may not hold together uniformly, leading to potential discrepancies in application rates. Crystals, while they can appear uniform, generally refer to a specific internal structure associated with certain types of chemical compounds and may not necessarily convey the same characteristics as pellets meant for agricultural use.

The unique formulation and characteristics of pellets make them particularly advantageous in pesticide application, as the consistency helps in achieving predictable results in pest management practices.