Volume : VII, Issue : VI, June - 2018

LARVICIDAL EFFICACY OF PLANT EXTRACTS ON AEDES AEGYPTI AND CULEX QUINQUEFASCIATUS

Dr. Padmanabha. B

Abstract :

Objective:of this study is to evaluate the larvicidal efficacy of different plants extract on two species of mosquito larvae.

Materials and methods:The larvicidal potential of four different plant material extract Citrus sinensis peel, Azadirachta indica bark, Carica papaya seeds and Anacardium occidentale nut shellwas tested against the fourth-instar larvae of Aedes aegyptiandCulex quinquefasciatus. Insecticidal susceptibility tests were carried out using WHO standard method and the mortality was observed after 24-hour exposure.

Result and discussion:All the tested plant extracts showed moderate to good larvicidal activities. However, the maximum larval mortality was detected in methanol extract of Anacardium occidentale (cashew) nutshell. The mortality rate was 100% at 600 ppm and LC₅₀35.53 ppm for Aedes aegypti and 38.65 ppm for Culex quinquefasciatus.

Conclusion:These results revealed that larvicidal properties of the selected plantsextract encouraged further effort to investigate the bioactive compounds in these extracts that might possess promising larvicidal properties.

Keywords :

Article: Download PDF    DOI : https://www.doi.org/10.36106/gjra  

Cite This Article:

Dr. Padmanabha. B, LARVICIDAL EFFICACY OF PLANT EXTRACTS ON AEDES AEGYPTI AND CULEX QUINQUEFASCIATUS, GLOBAL JOURNAL FOR RESEARCH ANALYSIS : Volume-7 | Issue-6 | June-2018

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