You must calibrate granule application equipment each time you change granular products.

Granule application equipment must be calibrated each time you change granular products to ensure accurate application rates and uniform distribution. Different granular products can vary significantly in particle size, weight, and composition, which can directly affect how they flow through the equipment. If the calibration is not adjusted accordingly, it could lead to under-application or over-application of the product, potentially compromising pest control efficacy or causing harm to the environment or non-target organisms.

Calibration ensures that the equipment applies the correct amount of product in accordance with label instructions and best practices, maintaining effectiveness while adhering to regulatory standards. Regular calibration also helps to minimize waste and reduce costs, making it essential practice for pest control applicators to calibrate whenever a new granular product is used.