Which of the following is commonly used to apply pesticides in mosquito control programs?

• A. Aerial application (King Air aircraft, night vision)
• B. Backpack sprayers
• C. ULV sprayers
• D. Drone spraying equipment

Answer: (B)

The main idea is that the chosen method should fit the scale and setting of the mosquito-control work. Backpack sprayers are widely used because they’re portable and ideal for ground-level, targeted applications in residential areas and small habitats. They let crews treat specific hotspots—around homes, sidewalks, yards, catch basins, or small bodies of water—without needing large equipment or aircraft. This makes them cost-effective and practical for routine, localized spraying and for applying larvicides or spot-treating resting sites where adult mosquitoes congregate.

While aerial or ULV equipment is used for larger-area adulticiding and drones are useful for hard-to-reach spots, backpack sprayers remain a common, versatile tool for everyday ground-based mosquito control.