What is a CO2 trap used for?

What is a CO2 trap used for?

• A. A trap used for estimates of adult mosquito abundance and collection of female mosquitoes for virus testing; dry ice baited, small, light, battery powered, portable
• B. A trap used only for resting box density
• C. A trap that only captures male mosquitoes
• D. A trap that uses light to attract insects only

Answer: (A)

The key idea is that CO2 traps use carbon dioxide as a strong host-seeking cue to attract mosquitoes. Mosquitoes, especially females looking for a blood meal, are drawn toward the CO2 plume emitted by hosts. A trap that releases CO2—commonly using dry ice—creates that scent cue in a small, portable, battery-powered device. As mosquitoes follow the plume, they’re captured in the trap, allowing researchers to estimate how many adults are present in an area and to collect female mosquitoes for virus testing. This approach targets host-seeking females rather than resting boxes, male-only captures, or traps that rely on light alone.

The key idea is that CO2 traps use carbon dioxide as a strong host-seeking cue to attract mosquitoes. Mosquitoes, especially females looking for a blood meal, are drawn toward the CO2 plume emitted by hosts. A trap that releases CO2—commonly using dry ice—creates that scent cue in a small, portable, battery-powered device. As mosquitoes follow the plume, they’re captured in the trap, allowing researchers to estimate how many adults are present in an area and to collect female mosquitoes for virus testing. This approach targets host-seeking females rather than resting boxes, male-only captures, or traps that rely on light alone.