T. Farjana
Department of Parasitology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.
M. S. Ahmmed
Department of Parasitology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.
T. F. Khanom
Department of Environmental Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.
N. Alam
Department of Parasitology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.
N. Begum
Department of Parasitology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.
Mosquito, Breeding site, Larval surveillance, Mymensingh
Socio-economic and Policy
The present study was conducted to record the status of vectors and others mosquito species as well as their breeding sites and breeding behavior, larval habitat, morphology and their abundance in Bangladesh Agricultural University (BAU) campus (agronomy rice field, poultry farm, dairy farm, boys halls, botanical garden and from residential staff quarter) and its surrounding areas (Kewatkhali, Boyra and Balashpur) in Mymensingh. This research has been done from January to June 2013. The campus is made up of a series of academic, administrative and residential buildings and experimental farms, gardens and other related facilities. The surrounding areas of BAU campus (Kewatkhali, Boyra, Balashpur) are densely populated and have good breeding grounds around them. Ponds, lakes, drains, ditches are also available in these areas. Most of the people of these areas use mosquito net, few people use aerosol and mosquito coil to prevent mosquito bite. Mosquito larviciding is not practiced in these locations. Inadequate management system, poor water supply and drainage systems of these areas are responsible for mosquito breeding. Identification of mosquito breeding sites is accomplished through regular examination of potential breeding locations and selection of water samples. Stagnant, still water is essential for mosquito breeding. Rice fields, poultry farm, dairy farm, residential halls, residential staff quarters, lakes, ponds, drains where stagnant water with wastes are available, mosquito larvae can be found there. Since mosquitoes breed in almost any kind of water body it is important to check all water bodies during a larval survey. In the present study the mosquito larvae were collected from the open habitats and close habitats. There were so many open habitats for mosquito breeding such as, drains and ditches, ponds, water storage or other man-made containers, puddles and tire tracks, rice or paddy field, agricultural pits construction pits, foundations and man-made holes, stream and river beds. All mosquitoes are classified in the order Diptera and in the family Culicidae, which has more than 3500 recognized species in the world. Adult mosquitoes are small, long-legged flies that have two wings. But mosquito larvae morphologically differ greatly to that of an adult mosquito. Some common features of a mosquito larva, which separates them from other true flies- all mosquito larvae are dorsoventrally flattened and the body divided into three parts; head, thorax and abdomen. Head bears several structures like antenna, eye, mental plate, mouth brush, and upper and lower head hair, pre antennal and antennal hair. Larval abdomen is segmented; usually bears 8 to 10 segment. Lateral hair may or may not be present and presence of siphon tube. Air plugs are present in siphon tube which controls air. Comb and anal gills are present in anal segment. Mosquito larvae were identified in the laboratory of Entomology, Department of Parasitology, BAU. The larvae were identified by simple method and by preparation of permanent slides. Students “t” test was done and the significance level of various mosquito species was calculated using statistical package SPSS-11.5.
Bangl. J. Vet. Med. (2015). 13 (1): 79-88, ISSN:1729-7893 (Print), 2308-0922 (Online)
Journal