Dhaka’s huge mosquito population is likely to be welcomed by most of the city’s hard-pressed residents.
The insects are found everywhere, from the homes of the wealthiest industrialists to the lowliest slum dweller. Pregnant women and babies are feared to be especially vulnerable. Mosquitoes that are belonging to the family culicidae, are the familiar parasitic vectors of a number of transmissible and life menacing diseases such as malaria, filariasis, dengue fever, yellow fever and most of the arthropod borne viral types of encephalitis.
Apart from these, they cause biting annoyance and irritation through sucking blood. They are the most worrying agents in both urban and rural areas since distant past and persist till now predominantly in the developing countries and the world in general. Due to the global climate change and deforestation the faunal distribution, vectorial capacity has been changed. We have little knowledge about the biology and bionomics of the vector mosquitos’ viz. many mosquito species are now being resistant to insecticides. Moreover, the mosquito fauna of Bangladesh is fairly rich and varied.Historically vector suppression has been viewed as a more economical and effective public health measure than medical therapy because it can be applied on an area basis without locating and treating each individual human patient.
However, critics point out that Dhaka will remain a dream location for mosquitoes and that they will only suffer minor casualties in any aerial campaign because most live in drains and waterways which can not be targeted by air-borne spraying.
Correct identification of vector species is essential for the effective control or prevention of
these diseases. In brief, Dhaka is a highly populated city with haphazard unplanned drainage
system where, different types of human activities are regularly performed such as deposition of waste materials (poly bags, coconut barks, papers, house’s and factory’s wastages) into
stagnant water that made the mosquitoes habitats for their regeneration in the year round .
So it is very important to know the status and distribution of mosquito fauna to control mosquito and mosquito borne diseases.
The present record was a base line data about the vector mosquito species and its abundance in the study areas. It would be helpful to control mosquito and to take precautionary measures against the mosquito-borne disease in Dhaka city.