Driftable fines are defined as droplets that fall within which size range?

Driftable fines are specifically defined as droplets that are in the size range of 50 to 200 microns. This size classification is significant because droplets within this range are small enough to be susceptible to wind drift when applied during aerial application. The behavior of these droplets in the air is influenced by factors like wind speed and direction, which can affect their deposition efficiency on target surfaces, such as crops. Understanding the size range of driftable fines helps applicators manage and mitigate drift, ensuring that the application is both effective and environmentally responsible. This knowledge is critical for adherence to regulations and best practices in aerial pesticide application, promoting effective pest control while minimizing impacts on non-target areas.