What type of pesticide formulation is characterized by the same weight and shape of particles?

The correct answer is pellet. A pellet pesticide formulation is specifically designed to have uniform weight and shape, which is beneficial for consistent application and effectiveness. This uniformity allows for predictable dispersion and helps ensure that each area treated receives an equal amount of the pesticide, leading to more efficient pest control and minimizing the risk of uneven treatment which can arise from variations in particle size or weight.

Pellets are typically created in a controlled manufacturing process that ensures each pellet has the same properties, making them easy to handle and apply. This is particularly useful in agricultural settings where precision is critical for both efficacy and regulatory compliance.

In contrast, granular formulations can vary in size and shape, making them less predictable in terms of application. Powders, while they may have uniformity in texture, do not have the same solid form as pellets and are often used in different contexts or methods of application. Spreadable is not a specific formulation type recognized in the way the other choices are categorized, and thus does not fit the criteria for uniformity in weight and shape.