AUTHOR(S)
Selvaraj, P.*, Christina Angelin, P. and Princy Rathnamala Jayaseeli, J.

ABSTRACT

The present study was designed to appraise the insecticidal and antibacterial potential of Clove, Syzygium aromaticum (L.) against some laboratory hosts and Escherichia coli respectively. The phytochemicals constituents were extracted with two solvents methanol and acetone. The result of the phytochemical analysis revealed that methanol extract has alkaloids, steroids, tannins, saponins, flavonids, cardiac glycosides, phenolic compounds and aromatic acids but in acetone extract all the constituents are similar as methanolic extract except aromatic acids. Results of the repellent activity observed against Tribolium castaneum and Corcyra cephalonica implies that silver based nanoparticles from methanol extract of 1% concentration showed maximum repellent activity of 71% against T.castaneum. Antibacterial efficacy of clove extracts tested against Gram negative bacterium E. coli revealed that 1% of methanolic extract of clove is found to have maximum growth inhibition (25mm). Results of the larvicidal activity tested against Bombyx mori recorded 100% mortality in 4% acetone extracts of clove. 

Keywords: Syzygium aromaticum, Tribolium castaneum, Corcyra cephalonica, Bombyx mori, Repellent activity, Larvicidal activity 

DOI
https://doi.org/10.57182/jbiopestic.12.2.191-196

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