Which of the following is a common reason for checking sprayer calibration?

Ensuring effective coverage is vital in pesticide application, making it a primary reason for checking sprayer calibration. When a sprayer is properly calibrated, it delivers the correct amount of pesticide evenly across the treatment area. This is essential because uneven application can lead to hotspots where pests may not be effectively controlled, or under-treatment where pests can survive and reproduce. Additionally, effective coverage helps in achieving the desired efficacy of the product, ensuring that the pesticide reaches the targeted pests without causing harm to the surrounding environment or beneficial organisms.

While other factors such as temperature, application speed, and cost can influence the overall effectiveness and efficiency of pest control practices, they are not the primary focus of calibration. Calibration primarily aims to ensure that the pesticide is applied at the right rate and under appropriate conditions to achieve the best results.