International Science Community Association Research Journal of Recent Sciences 2277 - 2502 4 7 2015 July 2 Effect of Costunolide a plant product of Saussurea Lappa on feeding behaviour of Papilio Demoleus l. (Lepidoptera: Papilionidae) Larvae 55 58 EN Mirtalebipour SayedeZaynab 1 Department of Psychology,Tonekabon Branch, Islamic Azad University, Tonekabon, IRAN Tayebeh Ferdowsi 2 University of Tehran, Tehran, IRAN Pouretemad Hamidreza 3 Shahid Beheshti University, Tehran, IRAN MaryamSadeghi Afrakati 4 Pourhamzeh Mohsen 1 Iran University of Science and Technology, Tehran, IRAN Babaei Bahman 2 Mohsen Faizi 3 Azimi SeyyedAli 1 Islamic Azad University of Central Tehran Branch, Tehran, IRAN Mir-Khalili SeyyedMahmoud 2 Department of Law, Farabi college, University of Tehran, IRAN Majid Karimian 1 Department of Mechanical Engineering, Khomeinishahr branch, Islamic Azad University-Khomeinishahr- Isfahan, IRAN Yaghoubi Yaghoub 2 Department of Material Engineering University of Tarbiat Modares, Tehran, IRAN Eftekhari Mohsen 3 Yazdanian SeyyedMansour 1 Accounting Department, Islamic Azad University-Khorasgan Branch Iran, Esfahan, IRAN Hosseini AzamSadat 2 Hachem AouraghMy 1 Department of Geo-engineering and Environmental Geology, Faculty of Sciences, Meknes, P.O. 11201 Zitoune-Meknes-50000, MOROCCO Essahlaoui Ali 2 ElOuali Abdelhadi 3 Abdellah ElHmaidi 4 Kamel Said 5 Golparvar Mohsen 1 Department of Industrial and Organizational Psychology, Esfahan (Khorasgan) Branch, Islamic Azad University, Esfahan, IRAN EsfahaniRasoul Rajezi 2 Mehdad Ali 3 KhodabakhshiParijan Khadijeh 1 DOS, B.N. Bahadur Institute of Management Sciences, Manasagangotri, University of Mysore, Mysore, Karnataka, INDIA SrinivasaRao Vattikonda 1 Department of Zoology, Entomology division, Nizam College (Autonomous), Osmania University, Hyderabad, AP, INDIA RaoAmanchi Nageswara 2 Sangam SabitaRaja 3 > Research Paper 2014 2 25 2015 July 2 Insect pest management is facing the economic and ecological challenge worldwide due to the environmental hazards caused by the synthetic pesticides. A search for alternate techniques for the insect pests’ management arises in recent years. Botanicals act not only as insecticides but also function as antifeedants, oviposition deterrents and ovicides. The present study was carried out to evaluate the antifeedant activity of Costunolide which was isolated from root extract of Saussurea lappa to citrus pest Papilio demoleus by non choice bioassay method. The test compound dissolved in acetone was separately tested at 200, 150, 100, 50ppm concentration continuously for 24 and 48 hours. The result showed that presence of antifeedant effect was maximum at 200ppm and least at 50ppm Costunolide influence on feeding activity of fourth instar larvae significantly reduced the food consumption, growth rate and utilization of the ingested food and reduced digestibility. Thus the feeding deterrence was markedly influenced when larvae fed on Costunolide sprayed leaves which caused more than 80% of antifeeding effect. Copyright@ International Science Community Association