Where do Culex mosquitoes lay their eggs?

Where do Culex mosquitoes lay their eggs?

• A. Permanent or temporary pools of water. Stagnant water.
• B. Running streams.
• C. Tree holes.
• D. Saltwater marshes.

Answer: (A)

Culex mosquitoes breed in still, stagnant water. They lay eggs on the surface of water in places where the water remains calm for days to weeks—permanent ponds, puddles, ditches, or any pool that isn’t moving. The eggs form rafts that float until they hatch, so these quiet, stagnant environments are ideal. Runoff in running streams creates currents that disrupt eggs and larvae, making them unsuitable. Tree holes are more typical for other species like Aedes, and saltwater marshes aren’t the standard habitat for Culex. So, the best match is stagnant water in permanent or temporary pools.

Culex mosquitoes breed in still, stagnant water. They lay eggs on the surface of water in places where the water remains calm for days to weeks—permanent ponds, puddles, ditches, or any pool that isn’t moving. The eggs form rafts that float until they hatch, so these quiet, stagnant environments are ideal. Runoff in running streams creates currents that disrupt eggs and larvae, making them unsuitable. Tree holes are more typical for other species like Aedes, and saltwater marshes aren’t the standard habitat for Culex. So, the best match is stagnant water in permanent or temporary pools.