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International Journal of Zoology and Applied Biosciences

Year : 2020 | Volume: 5 | Issue: 5 | Pages: 236-241

doi: https://doi.org/10.5281/zenodo.4096066

Larval density of Aedes mosquitoes in NCR during monsoon season

Lalthazuali, Sweta Bhan, Sukhvir Singh and Purnima Shrivastav

Received on: 08/17/2020

Revised on: 09/23/2020

Accepted on: 09/25/2020

Published on: 10/15/2020

  • Lalthazuali, Sweta Bhan, Sukhvir Singh and Purnima Shrivastav( 2020).

    Larval density of Aedes mosquitoes in NCR during monsoon season

    . International Journal of Zoology and Applied Biosciences, 5( 5), 236-241.

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Abstract

Aedes mosquito is a vector for transmitting many arboviruses. Since the last few years, annually more than one lakh cases of dengue infections occur in India resulting in substantial rates of mortality and morbidity. Thus, this study was aimed to determine the presence of Aedes mosquito species to conduct larval surveys at regular intervals to ensure sustained control of mosquito breeding. Out of 269 houses, 55 houses were found positive for Aedes breeding and out of 342 containers searched, 65 containers were found positive. A survey was done at Gurgaon, Kadipur village showed higher larval indices HI, CI and BI (11.1%, 20.3 % and 25.4 resp.) than Vishwakarma Colony, Basai Road (HI-13.4, CI- 13.2 and BI- 14.9). In Noida, Bhangel Village has higher HI, CI and BI (29.7 %, 22.7% and 29.7%) than Salarpur Village (HI-26.2, CI-18.9 and BI-26.2). Our findings imply that both colonies of Noida show higher Aedes indices than the critical level, which makes the area vulnerable for transmission of vector and vector borne diseases and current control measures do not suffice to match the need. These indices were above the critical index, indicating an impending outbreak, if appropriate control measures are not taken on time.

Keywords

Aedes aegypti, Aedes albopictus, Breeding habitat, Dengue, Vector surveillance.