What is the primary purpose of traps like BG-Sentinel and CDC light traps in Aedes surveillance?

What is the primary purpose of traps like BG-Sentinel and CDC light traps in Aedes surveillance?

• A. They estimate adult abundance and activity patterns by attracting host-seeking mosquitoes.
• B. They detect the presence of larval habitat in water bodies.
• C. They measure mosquito flight speed.
• D. They act as a barrier preventing mosquito entry.

Answer: (A)

The main idea is that these traps are used to monitor adult Aedes by attracting host-seeking females, so they provide an index of adult abundance and when mosquitoes are active. BG-Sentinel traps lure host-seeking females with odor attractants (and CO2), while CDC light traps attract mosquitoes with light and other cues. The captured adults reflect how many mosquitoes are out there and how their activity varies over time, which helps assess biting risk and guide control efforts. They sample adults, not larvae, so they don’t indicate larval habitat or breeding sites, and they don’t function as barriers or measure flight speed. Remember that trap data can be influenced by placement, environment, and attractants, but the core purpose remains monitoring adult population and activity.

The main idea is that these traps are used to monitor adult Aedes by attracting host-seeking females, so they provide an index of adult abundance and when mosquitoes are active. BG-Sentinel traps lure host-seeking females with odor attractants (and CO2), while CDC light traps attract mosquitoes with light and other cues. The captured adults reflect how many mosquitoes are out there and how their activity varies over time, which helps assess biting risk and guide control efforts. They sample adults, not larvae, so they don’t indicate larval habitat or breeding sites, and they don’t function as barriers or measure flight speed. Remember that trap data can be influenced by placement, environment, and attractants, but the core purpose remains monitoring adult population and activity.