Mist blowers are associated with increased spray drift.

Mist blowers are associated with increased spray drift.

• A. True
• B. False
• C. Not related
• D. Only at night

Answer: (A)

The main idea tested is why mist blowers tend to increase spray drift. Mist blowers push a large volume of air along with the pesticide spray to reach canopy interiors. That strong air movement helps carry even fine droplets away from the target area. Fine droplets stay suspended more easily in air and can be carried by wind or air currents, so drift beyond the treated area becomes more likely. Weather conditions matter too: any wind, gusts, or temperature inversions can magnify this effect, making drift a bigger concern with mist blowers than with sprayers that produce larger droplets or use less air movement. To manage this, operators often aim for coarser droplets when using air-assisted equipment, check nozzle types and spacing, calibrate application rates, and spray under favorable conditions (low wind, no inversion) with appropriate drift-reduction practices and buffer zones.

The main idea tested is why mist blowers tend to increase spray drift. Mist blowers push a large volume of air along with the pesticide spray to reach canopy interiors. That strong air movement helps carry even fine droplets away from the target area. Fine droplets stay suspended more easily in air and can be carried by wind or air currents, so drift beyond the treated area becomes more likely. Weather conditions matter too: any wind, gusts, or temperature inversions can magnify this effect, making drift a bigger concern with mist blowers than with sprayers that produce larger droplets or use less air movement.

To manage this, operators often aim for coarser droplets when using air-assisted equipment, check nozzle types and spacing, calibrate application rates, and spray under favorable conditions (low wind, no inversion) with appropriate drift-reduction practices and buffer zones.