Which term best describes a pesticide that is applied in solid form and not uniform in shape?

The term that best describes a pesticide that is applied in solid form and is not uniform in shape is granule. Granules are typically small, solid particles that can vary in size and shape, which allows for targeted application on soil or specific plants. They are designed for slow release and can provide long-lasting effects compared to other forms.

Liquid pesticides, emulsion, and suspension refer to formulations that involve liquids. Liquid pesticides are generally uniform in their application and are not solid. Emulsions are mixtures of two or more immiscible liquids, often used in pesticide formulation to stabilize active ingredients. Suspensions consist of solid particles dispersed in a liquid but do not apply solid pesticides directly in the way granules do. Thus, the definition of granule aligns precisely with the characteristics described in the question.