Which life stage do larvicides primarily target?

Which life stage do larvicides primarily target?

• A. Immature mosquitoes
• B. Adults
• C. Eggs only
• D. Pupae only

Answer: (A)

Larvicides target the mosquito life stage that’s still in water and actively developing—the larvae. Mosquitoes start as eggs that hatch into aquatic larvae, which then become pupae and finally adults. The larvae are the most accessible and vulnerable since they are feeding in water, so applying larvicides to those habitats disrupts their development and prevents them from becoming flying adults. Eggs are generally resistant to these treatments, and pupae don’t feed much, making them less suitable as primary targets. Adults require different products called adulticides, which are aimed at killing the flying mosquitoes.

Larvicides target the mosquito life stage that’s still in water and actively developing—the larvae. Mosquitoes start as eggs that hatch into aquatic larvae, which then become pupae and finally adults. The larvae are the most accessible and vulnerable since they are feeding in water, so applying larvicides to those habitats disrupts their development and prevents them from becoming flying adults. Eggs are generally resistant to these treatments, and pupae don’t feed much, making them less suitable as primary targets. Adults require different products called adulticides, which are aimed at killing the flying mosquitoes.