Spray drift
The physical movement of pesticide droplets through the air at the time of application to any site other than the intended area.
Также говорят: pesticide drift, wind drift, droplet drift
Spray drift is the movement of airborne droplets away from the target area, often caused by wind speed, droplet size, or nozzle configuration. Managing drift is crucial for environmental safety and ensuring the efficacy of chemical applications.
To reduce drift, operators often switch to air-induction nozzles that produce larger, heavier droplets less prone to wind interference. Adjusting the spray boom height and applying chemicals when wind speed is within safe thresholds are standard practices to keep the product on the target canopy.
Common errors involve spraying in gusty conditions, setting an incorrect boom height, or failing to maintain proper nozzle pressure, which can result in inconsistent droplet sizes and increased drift potential.