What is selective for Cx. pipiens in sampling immature mosquitoes?

What is selective for Cx. pipiens in sampling immature mosquitoes?

• A. Ovibucket
• B. Ovitrap
• C. New Jersey light trap
• D. CO2 trap

Answer: (A)

The key idea is to match the trap to where and how Culex pipiens lays eggs. Cx pipiens tends to oviposit in stagnant water in buckets and similar containers, laying egg rafts on the water surface. An ovibucket is a bucket-type trap that provides a suitable water surface and inner surface for Culex females to place their egg rafts, making it especially effective for sampling the eggs and early immature stages of this species. Ovitraps can attract a broader range of container breeders (not as selective for Cx pipiens specifically). The New Jersey light trap and CO2 trap target adult mosquitoes, not immatures, so they don’t address sampling of immature life stages. So the ovibucket is the trap that best targets Cx pipiens during immature-stage sampling.

The key idea is to match the trap to where and how Culex pipiens lays eggs. Cx pipiens tends to oviposit in stagnant water in buckets and similar containers, laying egg rafts on the water surface. An ovibucket is a bucket-type trap that provides a suitable water surface and inner surface for Culex females to place their egg rafts, making it especially effective for sampling the eggs and early immature stages of this species. Ovitraps can attract a broader range of container breeders (not as selective for Cx pipiens specifically). The New Jersey light trap and CO2 trap target adult mosquitoes, not immatures, so they don’t address sampling of immature life stages. So the ovibucket is the trap that best targets Cx pipiens during immature-stage sampling.