Q.

Which of the following can be used for biological control of mosquitoes?

A. DDT
B. Gambusia
C. Oil
D. Ointments
Answer» B. Gambusia
Explanation: Biological control is the use of natural enemies to manage the mosquito population. Effective biocontrol agent s include predatory fish that teed on mosquito larvae such as Gambusia affinis (mosquitofish) and some cyprinids (Carps and minnows).
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Biology (GK)

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