alexa Efficacy of Mosquito Repellent and Adulticidal Activiti
ISSN: 2329-891X

Journal of Tropical Diseases & Public Health
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Research Article

Efficacy of Mosquito Repellent and Adulticidal Activities of Halophila Ovalis Extract Against Filaria Vectors

Anuradha V1, Syed Ali M1*, Yogananth N1, Balachandhar2

1PG & Research Department of Biochemistry, Mohamed Sathak College of Arts & Science, Sholinganallur, Chennai, Tamilnadu, India

2Department of Biotechnology, Arulmigu Meenakshi Amman College of Engineering Vadamavandal, Tamilnadu, India

*Corresponding Author:
Syed Ali M
PG & Research Department of Biotechnology
Mohamed Sathak College of Arts & Science
Sholinganallur, Chennai, Tamilnadu, India
Tel: 00919842052929
E-mail: [email protected]

Received Date: November 04, 2015; Accepted Date: December 07, 2015; Published Date: December 14, 2015

Citation: Anuradha V, Syed Ali M, Yogananth N, Balachandhar (2015) Efficacy of Mosquito Repellent and Adulticidal Activities of Halophila Ovalis Extract Against Filaria Vectors. J Trop Dis 4:191. doi:10.4172/2329-891X.1000191

Copyright: © 2015 Anuradha V, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



The repellent and adulticidal activities were analyzed for ethanol extract of Halophila ovalis against Culex quinquefasciatus (Cx. quinquefasciatus). The extraction was done in soxhlet apparatus using ethanol as solvent. The repellent activity of the Halophila ovalis was determined against Culex quinquefasciatus in different concentration of the extract at 100, 150, 200, 250 and 300 μL/cm2. Adulticidal activity of the Halophila ovalis extract was tested against four to five day old female adults of Culex quinquefasciatus. The adult mortality was observed 24h under the laboratory conditions. Each experiment was conducted with the three replicates and a concurrent control group. As per the WHO guidelines, the experiments were conducted. At 250 μL of concentration extracts of Halophila ovalis showed maximum repellency percentage of 95% against Culex quinquefasciatus. The highest adulticidal activity was observed in 100 μL concentration against Culex quinquefasciatus with LC50 were (50.2 ± 0.7) μL/ml and (51.2 ± 0.9) μL/ml. The GC-MS reveals unique chemical compounds obtained from the extract of Halophila ovalis. The present study identifies the active insecticidal compounds from Halophila ovalis by GC-MS and from the results it can be concluded the extract of Halophila ovalis can be novel efficient biocontrol source against filariasis mosquitoes.


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