Repellent, Antifeedent and Toxic Effects of Certain Plant Extracts on Cotton Leafworm, Spodoptera littoralis Boisd.
Two plants, i.e. Anthemis melanopodia and Artemesia monosperma were tested against the 4th instars larvae of Spodoptera littoralis (Boisd.) under laboratory conditions. Four crude extracts (Hexane, Chloroform, Ethyl acetate and Ethanol) from each of the two plants used were evaluated by two different technique, i.e. residual films and dipping. Results indicated different percentage of mortality in larval depending on the ... Read more