Too wide or too narrow overlapping of spray passes will lead to:

When spray passes during aerial application are too wide or too narrow, the result is an uneven application pattern. This unevenness occurs because the overlap (or lack thereof) affects how much of the material is applied to specific areas of the target. If the passes are spaced too far apart, some areas may receive inadequate coverage, while others may receive an excess. Conversely, if the passes overlap too much, it can lead to wastage of the material and potential phytotoxicity in those areas, while still leaving gaps in coverage elsewhere.

Achieving a consistent and effective application relies on properly calibrating the equipment and ensuring the spacing of the spray passes is optimized. Only with correct overlaps can the desired efficacy of the treatment be ensured, making it critical to understand the consequences of improper spacing in aerial applications.