What is the purpose of calibrating a spreader when using granular pesticides?

Calibrating a spreader when using granular pesticides is essential to ensure even application rates. Proper calibration allows the applicator to set the spreader to deliver the correct amount of pesticide consistently across the target area. This is crucial for both efficacy and safety. An even application helps to avoid areas that are over-treated, which can lead to crop damage, environmental contamination, and the development of pest resistance, while also preventing under-treatment that can result in ineffective pest control.

Additionally, accurate calibration helps in managing the costs associated with pesticide usage by minimizing waste and ensuring that the appropriate amount is applied for effective control. Overall, maintaining even application rates contributes significantly to successful pest management in field crops, while promoting environmental health and sustainable practices.