Which is a disadvantage of airblast sprayers?

• A. Must operate under calm conditions.
• B. They never have reach issues.
• C. They only use water and no air.
• D. They are always small enough to reach all areas.

Answer: (A)

Airblast sprayers use a strong airstream to atomize and carry droplets deep into dense canopies, which is great for coverage but creates a major drift risk. Because droplets are propelled by wind and airspeed, even light breezes can push them off target, reducing treatment on the intended plants and potentially affecting nearby crops, wildlife, or water sources. That drift tendency makes calm conditions a practical necessity for these sprayers, limiting when you can treat and complicating timing and logistics. The other statements don’t fit: reach can be limited by tree height and canopy structure, the system relies on air to move droplets, and these sprayers aren’t inherently small enough to reach every area—canopy shape and sprayer size often leave some spots untreated.