Which management practice helps control spray drift during applications?

• A. Increasing application pressure
• B. Using larger nozzle orifices
• C. Restricting applications to cooler hours
• D. Applying pesticides closer to target areas

Answer: (B)

Using larger nozzle orifices is a management practice that effectively helps control spray drift during pesticide applications. Larger nozzles generally produce larger droplets, which are less susceptible to being carried away by wind. When droplets are larger, they are more likely to settle on the intended target area rather than becoming airborne, which reduces the risk of spray drift. This is particularly important because uncontrolled drift can lead to the unintended application of pesticides to non-target areas, which can harm beneficial insects, plants, and water sources.

While increasing application pressure can create a finer mist that may drift more easily, and spraying during cooler hours or applying pesticides closer to target areas can help minimize drift to some extent, the direct impact of using larger nozzle orifices is particularly significant in combating drift effectively.