What is an effective strategy to manage spray drift?

An effective strategy to manage spray drift involves controlling the spray droplet size and ensuring that pesticides are applied during calm air conditions. Larger droplets are less likely to be carried away by wind, minimizing drift and ensuring that more of the pesticide remains on the target area. Spraying when the air is calm reduces the potential for airborne dispersal, as even slight wind can lead to significant drift, impacting surrounding non-target areas and potentially causing environmental harm.

While the other choices may include some valid aspects, they do not collectively represent the most effective strategy for managing spray drift. For instance, spraying at high speeds or as close to the ground as possible can actually increase the risk of drift rather than mitigate it. Additionally, using additives and smaller orifice sizes could influence application characteristics, but they do not address the core issues of droplet size and wind conditions, which are crucial for minimizing drift. Therefore, the approach of controlling droplet size and timing applications during calm weather is the most effective and reliable method of managing spray drift.