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Adulticidal Activity of Olea Vera, Linum Usitatissimum and Piper Nigera Against Anopheles Stephensi and Aedes Aegypti Under Laboratory Conditions

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Author(s): R Nawaz | H Rashid Rathor | H Bilal | SA Hassan | I Akram Khan

Journal: Iranian Journal of Arthropod-Borne Diseases
ISSN 1735-7179

Volume: 5;
Issue: 2;
Start page: 2;
Date: 2011;
Original page

Keywords: Adulticide | Plant Extracts | Anopheles Stephensi

ABSTRACT
Background: There are several plant extractions which are being used for mosquito control. The aim of this study was to evaluate the efficacy of Olea vera, Linum usitatissimum and Piper nigera against Anopheles stephensi and Aedes aegypti under laboratory conditions. Methods: These tests were carried out using WHO recommended bioassay method for adult mosquitoes. Results: The extracts from black pepper was more effective as adulticide with lowest LC50 values (2.26% and 8.4%) against Aedes aegypti and Anopheles stephensi after 24 h of exposure while after 48h (1.56% and 5.11%) respec­tively. In terms of LC90 value black pepper was best with (8.66% and 30.1%) against Ae. aegypti and An. stephensi after 24 h of exposure while after 48h (4.59% and 17.3%) respectively. In terms of LT50 black pepper took 15 h to kill 50% tested population of Ae. aegypti while against An. stephensi it took more than 2 days. In terms of percentage mortality black pepper kill 84% of the population of Ae. aegypti and 44.75% of the An. stephensi population. Conclusion: Black pepper showed best results in term of LC50, LC90, LT50 and percentage mortality against Ae. ae­gypti and An. stephensi. Our study suggested that the plant extracts have potential to kill adult mosquitoes, are environment friendly and can be used for the control of mosquitoes.
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