What is the main concern with flying too low during a granule application?

In aerial application, particularly when applying granules, flying at lower altitudes can lead to uneven distribution of the material due to various air dynamics. When it comes to the dispersal of granules, the main concern is that the lower flight height can significantly affect how the granules travel horizontally once they are released.

At lower altitudes, the airflow around the aircraft and the granules can become more turbulent, which may disrupt the intended flight path of the granules. This turbulence can cause the granules to drift or not disperse evenly across the target area. The effect of ground proximity, or the "ground effect," can also alter the way air flows around the aircraft and the granules, leading to a less controlled and inconsistent application.

Thus, the concern primarily revolves around how the dynamics of the air at lower heights can negatively influence the horizontal movement of granules, potentially resulting in uneven application and a failure to achieve the desired results in pest control or crop treatment.