What is the purpose of checking boom height during spraying?

Checking boom height during spraying primarily ensures adequate coverage of the target area. When the boom is set at the proper height from the target, it allows the herbicide to reach the foliage effectively, maximizing the application efficiency. If the boom is too high, it can lead to uneven application or insufficient coverage, resulting in poor weed control. Conversely, if the boom is too low, it can cause excessive overlap of the spray and potentially lead to waste or unintended damage to non-target plants.

While preventing drift is indeed a critical reason for managing boom height, the primary focus in this question is on coverage. Adjusting the boom height can significantly impact the uniformity and efficacy of the herbicide distribution across the area being treated, thus making it essential for successful weed management.