Insecticidal Potential of Aquatic Alien Weed, Eichhornia crassipes (Mart) Solms on Tobacco Caterpillar, Spodoptera litura (F.)

Insecticidal potential of aerial parts of E. crassipes against S. litura under laboratory was studied. Antifeedancy was recorded 57.8% in n-hexane extract and 35.9% in methanol extract against S. litura. Significant correlation was recorded between the antifeedant activities of treated leaves against S. litura. Phytochemicals present in E. crassipes through GCMS analysis showed secondary metabolites such as Docosane and Nonacosane reported to have synamonal activity; Camarolide and Erucylamide with promising insecticidal activity. Presence of fatty acids in n-hexane and methanol extracts of E. crassipes was found to be used to manage S. litura. Therefore, potential utilization of E. crassipes as a natural insecticide is an alternative for the management of E. crassipes.

Author(s): Lenora LM and Senthilkumar N

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