The number of fluid ounces caught equals the GPA applied by making an application with the nozzle setup and pressure used in step 1 and the driving speed used in step 4. 7. To increase GPA, either increase pressure or drive slower. To decrease GPA, either decrease pressure or drive faster. Minimizing spray drift. It is important to minimize drift for economical, effective control and to protect the environment.
Small droplets tend to drift, so it is better to use nozzles that produce a large droplet.
Use low pressure, large orifices, and drift reduction adjuvants, and avoid spraying on windy days. Cleaning the sprayer is very important. At the end of each day's spraying, completely rinse the inside and outside of the sprayer with clean water. When changing from one chemical to another, or at the end of the spraying season, give the sprayer a thorough cleaning according to manufacturer's recommendations. Flush the system with clean water.