What pesticide formulation consists of small chunks that can be applied directly to the plant or soil?

The formulation that consists of small chunks which can be applied directly to the plant or soil is granules. Granules are solid pesticide formulations that typically have a larger particle size compared to powders and are often used for their ease of application and slow-release properties. They can be scattered on the ground or placed in the soil to control pests, providing targeted treatment with minimal drift, which is particularly useful for addressing soil-dwelling pests or for slow release of active ingredients to protect plants over time.

In contrast, powders are finely ground substances that might require mixing with water or another carrier for application, while liquids are typically applied in a diluted form and can easily drift due to their low viscosity. Foams consist of gas bubbles in a liquid solution and are usually utilized for treating specific situations where adherence to surfaces is important, making them less suitable for direct application to soil or broad plant coverage like granules. This distinction highlights why granules are the ideal choice for the described application method.