What should be checked if the spray pattern is not uniform?

When the spray pattern is not uniform, checking the boom height and nozzle alignment is critical to achieving an even application of the pesticide. The boom should be at the correct height to ensure that the spray reaches the intended target without excessive drift or overlapping. If the boom is too high or too low, it can lead to inconsistent coverage, resulting in areas where the pest is not adequately controlled.

Additionally, proper nozzle alignment ensures that each nozzle is functioning correctly and contributing to an even distribution of the spray. Misaligned nozzles can cause uneven spraying, which may result in certain areas receiving too much pesticide while others receive too little, leading to ineffective pest management.

While other factors like nozzle tip size, pesticide label specifications, and environmental conditions are important, they do not address the immediate concern of achieving a uniform spray pattern as effectively as checking the boom height and nozzle alignment. Proper maintenance and setup of these components are essential for optimal performance of the spraying equipment.