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Efficacy of Botanical Extracts from Tagetus erecta and Cymbopogon citratus Against the Yellow Fever Mosquito, Aedes aegypti


Affiliations
1 P. G. and Research Department of Zoology, Kongunadu Arts and Science College, Coimbatore-641 029, T. N., India
 

The plant extract of Tagetus erecta and Cymbopogon citratus were evaluated for ovicidal and repellent activities against Aedes aegypti. The egg hatchability was observed after 24 hour exposure. 100% ovicidal activity was observed at 5.5% and 3.0% respectively. Skin repellent test at 0.25, 0.5, 0.75 and 1.0 mg/cm2 concentration gave 100% protection upto 4.0, 4.5, 5.0, 5.5 and 6.0 hrs respectively. From the present study it was revealed that extracts from Tagetus erecta and Cymbpogon erecta can be effectively used in the control of Aedes aegypti.

Keywords

Botanical Extracts, Tagetus erecta, Cymbopogon citratus, Aedes aegypti, Ovicidal Effects, Repellent.
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  • Efficacy of Botanical Extracts from Tagetus erecta and Cymbopogon citratus Against the Yellow Fever Mosquito, Aedes aegypti

Abstract Views: 111  |  PDF Views: 0

Authors

M. Manimegalai
P. G. and Research Department of Zoology, Kongunadu Arts and Science College, Coimbatore-641 029, T. N., India
S. Binu Kumari
P. G. and Research Department of Zoology, Kongunadu Arts and Science College, Coimbatore-641 029, T. N., India

Abstract


The plant extract of Tagetus erecta and Cymbopogon citratus were evaluated for ovicidal and repellent activities against Aedes aegypti. The egg hatchability was observed after 24 hour exposure. 100% ovicidal activity was observed at 5.5% and 3.0% respectively. Skin repellent test at 0.25, 0.5, 0.75 and 1.0 mg/cm2 concentration gave 100% protection upto 4.0, 4.5, 5.0, 5.5 and 6.0 hrs respectively. From the present study it was revealed that extracts from Tagetus erecta and Cymbpogon erecta can be effectively used in the control of Aedes aegypti.

Keywords


Botanical Extracts, Tagetus erecta, Cymbopogon citratus, Aedes aegypti, Ovicidal Effects, Repellent.