What is the primary cause of spray drift?

The primary cause of spray drift is off-target movement during liquid application. Spray drift occurs when tiny droplets of herbicide, fungicide, or pesticide are carried away from the intended target area by wind or other environmental factors. This unintended movement can lead to ineffective application on the targeted weeds or crops and can also potentially harm non-target plants or the surrounding environment.

Spray drift is influenced by several factors, such as droplet size, wind speed, and the way the product is applied. By understanding that off-target movement is the main reason for spray drift, applicators can take precautions to minimize its impact, such as adjusting the nozzle settings or choosing appropriate times and methods for application. Recognizing this primary cause helps in developing effective strategies to mitigate drift and ensure that herbicides are used safely and efficiently.