Which adjustment to a broom sprayer application will help reduce the likelihood of pesticide drift?

Lowering the height of the spray broom is an effective adjustment for reducing the likelihood of pesticide drift during application. By bringing the spray broom closer to the target surface, the energy and momentum of the droplets are decreased when they are released, which minimizes their tendency to be carried away by wind. This is particularly important as wind can easily disperse smaller droplets over larger distances, leading to off-target applications that can harm non-target plants, wildlife, or even lead to public safety issues.

In contrast, increasing the height of the spray broom would likely increase the potential for drift, as more time is allowed for the droplets to be affected by wind before reaching the intended target. Using a finer spray droplet would also increase the risk of drift, because smaller droplets are more susceptible to being carried by air currents. Applying during windy conditions is not advisable as it can exacerbate drift problems significantly, regardless of other adjustments made to the equipment. Lowering the height of the spray broom effectively mitigates these risks, making it the best choice for reducing pesticide drift.