How should you adjust pressure to reduce drift when applying pesticides?

To effectively reduce drift when applying pesticides, lowering the pressure is the correct approach because it leads to larger droplet sizes and minimizes both vapor and particle drift. Lower pressure generates coarser droplets that are less likely to be carried away by the wind, thereby maintaining the application more precisely on the target area.

Drift can occur both through the evaporation of smaller droplets and by airborne particles being displaced by air movement. By decreasing pressure, the formulation of the spray becomes more targeted, reducing the risk of drift during application. Additionally, this practice can help ensure that the pesticide remains effective by minimizing unintended exposure to non-target areas.

Maintaining constant pressure without regard to environmental conditions can potentially increase drift, and high pressure might produce smaller droplets that are more susceptible to being carried off by wind, both of which do not promote effective pesticide application.