Ananthi P. and Ranjitha Kumari B. D.
Larvicidal activity of seed and root extracts of Rorippa indica L. at different concentrations (1.0, 2.0, 3.0 4.0 and 5ppm) was evaluated at room temperature against Spodoptera litura Fab. Among the different extracts tested (petroleum ether, chloroform, ethanol, methanol and aqueous) the methanolic root extract without elicitor treatment (Jasmonic acid) depicted the highest mortality rate at 5ppm (73 %) and elicitor treated methanolic root extract, a high mortality rate was observed at 5 ppm (100 %). The methanolic elicitor treated root extracts of R.indica showed highest morality rate at 5 ppm. Interestingly no morality was observed in control. Hence, this plant could be used to isolate active principle and develop a new botanical formulation in pest management programme.
