Evaluation of antifeedant, growth inhibitory and toxic action of plant extracts against Spodoptera litura (fab.) larvae

Investigations were carried out to assess the effect of water extracts of seven plant species namely Neem, Gulabas, Forest jasmine, Chinese arborvitae, Spreading hogweed, Tridex and Parthenium leaves on feeding growth and development of Spodoptera litura larvae under laboratory condition. Among the seven plant species, promising results were obtained only with two plant extracts namely Neem and Forest Jasmine. Antifeedant action, growth inhibition and larval mortality were significantly highest in these two extracts indicating their potential use in the management of Spodoptera litura population under field condition.