What technique should be used to evaluate drift potential for aerial application of pesticides properly?

Using the technique of releasing smoke at application height is essential for evaluating drift potential in aerial pesticide applications because it allows for a visual demonstration of how air movement can affect the dispersion of droplets. By observing the smoke, operators can assess the wind patterns, turbulence, and potential drift zones in real-time, which helps in determining whether conditions are suitable for application. This technique provides immediate feedback on how the applied materials might behave once released, which is critical for minimizing off-target movement and ensuring that the application is effective and compliant with regulations.

While water sensitivity tests, checking wind direction, and monitoring temperature fluctuations are important factors in the overall assessment of application conditions, they do not provide the direct, real-time visual feedback necessary to fully evaluate the risk of drift during aerial applications.