• M.RAMANAN
• N.MUTHUKUMARAN

The effect of acetone, ethyl acetate, hexane and methanol extract of various plant parts of. Senna alata L against Spodoptera litura Fab. revealed presence of various anti insect properties such as feeding deterrence, insecticidal and insect growth regulatory activities. Among the solvents tested acetone imparted maximum antifeedant action of 98.01 per cent followed by methanol. Between the plants parts tested the seed extract had shown higher feeding deterrence followed by leaf extract. Various solvent extracts of other plant parts failed to exhibit significant feeding deterrence (> 60%). Supreme insecticidal action was noticed only in methanol extract of seed (80% larval mortality) and it caused complete death of all the treated insects (Nil adult emergence). Insect growth regulatory activity alone was noticed as the supreme anti insect action in ethyl acetate solvent extract. It caused nil adult emergences by imparting 40 and 60 per cent larval and adult malformations respectively. Among the solvent extracts, Hexane exhibited minimum anti insect effects in all the plant parts tested.

Anti insect properties, Senna alata, Spodoptera litura

"Evaluation of anti insect properties of Senna alata L against Spodoptera litura Fab[Lepidoptera: Noctuidae]", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.430-438, February-2019, Available :http://www.jetir.org/papers/JETIR1902370.pdf

"Evaluation of anti insect properties of Senna alata L against Spodoptera litura Fab[Lepidoptera: Noctuidae]", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp430-438, February-2019, Available at : http://www.jetir.org/papers/JETIR1902370.pdf