Which of the following factors can increase drift during pesticide application?

Increasing spray pressure is significant in enhancing drift during pesticide application because it generally leads to the creation of smaller droplets. When the spray pressure is elevated, the finer droplets can become airborne more easily, especially in windy conditions. Smaller droplets have a higher tendency to remain suspended in the air longer, facilitating the drift from the target area to non-target areas.

In contrast, thicker spray mixtures tend to reduce drift because they create larger droplets that are less likely to be affected by wind. Larger droplet size, similarly, minimizes drift potential since larger droplets fall to the ground more rapidly due to gravity. Maintaining a lower nozzle height is crucial for reducing drift as it allows the spray to be applied closer to the target surface, thus minimizing the distance that droplets must travel through the air, which can further decrease the risk of drift.