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

The formulation that consists of particles that are the same weight and shape is the pellet. Pellets are designed to have a uniform size and weight, which allows for consistent application and effectiveness in pest control. This uniformity helps in ensuring that the dosage applied matches the intended amount needed for effective treatment, providing better control and minimizing risks of under- or over-application.

Granules, while also dry formulations, do not typically have the same level of uniformity in size and shape as pellets, as they can vary more in these aspects. Powders may consist of fine particles that can vary in size and weight, which can affect their distribution and efficacy. Cakes refer to a different type of product where solid material is formed into a sheet or block, without the focus on particle uniformity.

Thus, the defining characteristic of pellets is the consistent shape and weight of each particle, making them distinct in this context.