To determine the proper spray volume for a pesticide, a pilot must:

Reading and following the pesticide label is essential for determining the proper spray volume because the label contains critical information on application rates specific to that pesticide. These rates are determined by rigorous testing and are designed to ensure effectiveness while minimizing harm to the environment and non-target organisms. The label provides guidelines that outline not only the required volume per acre but also factors such as environmental conditions and timing, which can significantly affect the efficacy of the application.

Using estimates based on experience or knowledge of aircraft capacity may lead to inconsistent results and potential over- or under-application of the pesticide, which could result in ineffective pest control or damage to crops. Consulting a co-pilot could provide additional input, but it does not replace the authoritative guidelines provided on the pesticide label. Therefore, adherence to the pesticide label is crucial for safe and effective aerial application.