What is the purpose of using a VPS nozzle in aerial application?

The purpose of using a Variable-Pressure Swirl (VPS) nozzle in aerial application is to produce larger droplets, which helps to minimize drift and improve coverage. Larger droplets are more effective at reaching their intended target because they are less susceptible to wind currents compared to smaller droplets that may drift away from the application area. By producing a droplet size that effectively balances coverage and drift potential, the VPS nozzle allows for more efficient pesticide application, leading to better pest control and potentially less environmental impact.

This design facilitates the creation of droplets that can penetrate the crop canopy without generating a mist that would be easily carried away by the wind, thereby enhancing the overall application efficacy. The effectiveness of larger droplets in terms of reducing drift is particularly critical in aerial application settings where wind conditions can significantly affect the accuracy of pesticide applications.