Anti-insect activities of solvent extracts of Andrographis paniculata on the Diamondback moth, Plutella xylostella (L.)

R Sangavi, Y. S JOHNSON THANGARAJ EDWARD, S Jeyarajan Nelson, M Paramasivam, C Meenambigai

Abstract


Diamondback moth, Plutella xylostella (Linnaeus.) is a key pest on Brassicaceae crops causing severe yield loss worldwide. Insecticidal properties of the solvent extracts of Andrographis paniculata against diamondback moth were studied as an alternative to insecticides. Among the extracts tested, Cent percent mortality
was observed in hexane extract of A. paniculata at 0.6 per cent concentration. Maximum of 65.00 and 90.00 per cent mortality was observed in ethanol and ethyl acetate extract at 0.6 per cent concentration respectively.


Keywords


Diamond back moth, plant extract, efficacy

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