Abstract

ANTIMICROBIAL, LARVICIDAL AND ACARICIDAL ACTIVITIES OF THE ETHANOLIC EXTRACT OF ANDROGRAPHIS PANICULATA AND CARICA PAPAYA LEAVES

S. Krishnaveni and P.Venkatalakshmi

Abstract

The present study has been designed to evaluate the antimicrobial, larvicidal and acaricidal activities of the ethanolic extract of Andrographis paniculata and Carica papaya leaves. Antimicrobial activity of the extract was evaluated against five pathogenic bacterial and two fungal strains. The activity was compared with a standard antibiotic Erythromycin. Larvicidal activity of the extract was evaluated as the percentage mortality of mosquito larvae using different concentrations of the extract. Acaricidal activity was evaluated against the cattle tick Rhipicephalous annulatus.The results of the present study are presented and discussed. The findings of the present study, clearly demonstrates the antimicrobial, larvicidal and acaricidal activities of the ethanolic extract of Andrographis paniculata and Carica papaya.

Keywords: Acaricide, Andrographis paniculata, Antimicrobial agent, Carica papaya, Larvicide.