Mosquito borne diseases have a great impact on human and animal health throughout the world including Bangladesh. An entomological survey was conducted at the Bangladesh Agricultural University (BAU) campus and its surrounding areas from January to June, 2013 to identify the mosquito larvae and to investigate the different breeding site preferences of mosquitoes. Mosquito larvae were collected using dipper, ladle spoon, dropper and pipette from rice field, botanical garden, dairy farm, poultry farm, drains, lakes, ponds, staff quarters, residential halls and cattle sheds. A total of 1397 mosquito larvae were collected from the places. Ten species of mosquitoes under three genera were identified. The recorded genera were Anopheles (An.), Culex (Cx.) and Aedes (Ae.). The collected species were An. bengalensis, An. vagus, Cx. fuscocephala, Cx. quinquefasciatus, Cx. tritaeniorhynchus, Cx. gelidus, Cx. vishnui, Cx. whitmorei, Cx. sitiens and Ae. albopictus. Among the collected larvae, Culex was found most prevalent (64.3%), followed by Anopheles (26.7%) and Aedes were the least prevalent (9.0%). The results of this study provide evidence that drains were the most common aquatic habitat of Anopheles and Culex larvae in Boyra, Kewatkhali and Balashpur. In BAU campus, agronomy fields were found having the highest percentage (35.2%) of mosquito larvae than the other places of the campus. This study suggests that although drains and rice fields are the richest habitats, since Anopheles and Culex can breed in all available breeding habitats. This larval survey will help us to conduct future mosquito control activities and provide us useful information to schedule larvicides application to control the mosquito borne diseases in the study areas as well as throughout the country.DOI: http://dx.doi.org/10.3329/bjvm.v13i1.23962Bangl. J. Vet. Med. (2015). 13 (1): 79-88
Mosquitoes are the small insects belonging to the order diptera. They are familiar parasitic vectors of a number of transmissible and life menacing diseases. The study was conducted at the Bangladesh Agricultural University (BAU) campus and its surrounding areas in Mymensingh, Bangladesh from January to June, 2013 detect adult mosquito species and their status. Adult mosquitoes were collected using light traps (LTs), insect collecting nets, and human bait (HB) from households, cattle sheds, rice field, botanical garden, dairy farm and poultry farm and staff residential quarters. A total of 2,750 adult mosquitoes were collected from these places. Ten species of mosquitoes under two genera were identified. Among the two genera Culex (84.3%) was the leading group dominated over Anopheles (15.7%) in all areas. In case of Culex species, the most prevalent mosquito species was the Cx. quinquefasciatus (39%) followed by Cx. fuscocephala (23.7%), Cx. tritaeniorhynchus (15.8%), Cx. gelidus (4.0%), Cx. whitmorei (1.2%), Cx. vishnui (0.3%) and Cx. whitei (0.3%). On the other hand, among Anopheles species, An. bengalensis (11.1%) was found in the highest percentage followed by An. vagus (3.8%) and An. jayporiensis (0.8%). Among the studied areas, the highest prevalence of mosquitoes were collected from cattle sheds (40.7%), followed by households of Balashpur (16.2%), Boyra (14.9%) and Kewatkhali (12.4%). Though Culex species was found as dominant species in all areas, the highest percentage (96.7%) was found in staff residential area in BAU campus, whereas, the highest prevalence of Anopheles species (28.7%) was found in cattle shed. We found that two genera were prevalent together in almost all areas, however, though Culex was the dominant one. In conclusion, our survey provided useful information on the prevalence of mosquito species regarding the distribution and diseases control.Progressive Agriculture 26:60-66, 2015
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