How are adulticides usually applied?

• A. Ground fogging only.
• B. Ultra low volume (ULV) sprays.
• C. Direct soil injection.
• D. Aerial dusting.

Answer: (B)

Targeting adult mosquitoes means delivering the pesticide as a fine airborne spray that can reach flying insects in outdoor spaces. Ultra-low-volume sprays are designed for this purpose because they create microdroplets and use only a tiny amount of product, yet cover a large area. Those small droplets stay airborne long enough to drift through vegetation and across streets, increasing the chance that flying mosquitoes contact the product. Other methods either address larvae or use larger, less controllable droplets, which makes them less effective for killing adults in outdoor environments. Aerial dusting and soil injection don’t fit the goal of killing adults: aerial dusting uses bigger droplets and less precise coverage, and direct soil injection targets breeding sites rather than adults.