Abstract: Biopesticides are the integral components of integrated pest management which attain high momentum in recent years in organic farming activities. Insecticidal activity of aqueous and methanol extract of Catheranthus roseus were evaluated against an insect model Drosophila melanogaster along with determine extraction yeied. The insecticidal activity assayed at various concentrations of both extract under the laboratory condition. The concentrations of aqueous and methanol extract causes 50% and 90% eclosion inhibition in test organism were determined by probit analysis. Both extract showed insecticidal activity and the highest eclosion inhibition were found in the methanol extract (EC50=126.86 mg/ml) than aqueous extract (EC50=364.29 mg/ml). No mortality observed in the control. The methanol and aqueous extract of Catheranthus roseus have potential to be used as biopesticide for the control of insect pest in the agricultural field with minimum retention in the environment.
Keywords: Catheranthus roseus, eclosion inhibition, insecticidal activity and yield of extract.
Title: Insecticidal efficacy of aqueous and methanol extract of Catheranthus roseus (L) G. Don against an insect model Drosophila melanogaster Meigen
Author: Shameema K., Y. ShibuVardhanan
International Journal of Interdisciplinary Research and Innovations
ISSN 2348-1218 (print), ISSN 2348-1226 (online)
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