Which of the following is NOT a method to decrease outdoor drift?

Using high boom height is not a method to decrease outdoor drift because it can actually increase the potential for drift. When the boom is positioned higher above the target area, pesticides may be more susceptible to being carried away by the wind before they reach the intended treatment area. By contrast, maintaining a lower boom height allows for the application of pesticides closer to the target surface, which helps to minimize drift by reducing the distance that pesticide droplets must travel through the air.

In terms of the other choices, spraying when wind speeds are moderate, such as between 5 to 15 km/h, helps to ensure that the pesticide is applied effectively while minimizing drift, as winds that are too light or too strong can result in poor application or increased drift. Spraying downwind from sensitive areas strategically positions the applicator to avoid impacting non-target sites. Additionally, using proper nozzles and pressures is crucial for producing larger droplet sizes that are less prone to being affected by wind, further reducing the risk of drift.