Indian Public Health Association (IPHA), Tamil Nadu chapter conducted a sample survey on the mosquito menace in Chennai. The survey revealed a high density of the Armigeres species in several pockets of north Chennai.
These mosquitoes, unlike the female Anopheles and Aedes mosquitoes, do not transmit diseases. However, their bites are painful. These mosquitoes were found in abundance in several parts of north Chennai, including Korukkupet, Washermenpet, Otteri, Mint, Pulianthope, Vyasarpadi, Pattalam, Tondiarpet and Kasimedu. The Armigeres mosquitoes breed in sewage and in places that are highly contaminated by human excreta. To prevent them from breeding, the lids of all septic tanks should not have any crevices. Vent pipes should also be covered with a mosquito mesh.
Entomologists said sewage overflow should be cleared immediately and debris or soil could be dumped on stagnant pools. Fogging will also help, as it can destroy the adult Armigeres mosquito population and anti-larval measures should also be taken up.