What is typically true about ULV spraying for mosquitoes?

• A. It uses high volumes of insecticide per acre.
• B. It applies very small amounts per acre in microscopically small droplets that remain suspended briefly.
• C. It targets only larval habitats.
• D. It is ineffective against flying mosquitoes.

Answer: (B)

ULV spraying uses ultra-low volumes of insecticide delivered as extremely fine droplets that stay airborne only briefly. This design allows a very small amount of product to cover a large area and contact flying mosquitoes as they move through the treated space, without saturating surfaces or needing high volumes. It targets adult mosquitoes, not larvae, and relies on microdroplets that drift in the air rather than depositing as a heavy spray. Therefore, the description of applying very small amounts per acre in microscopically small droplets that remain suspended briefly best matches how ULV spraying works.