Citation:Paranagama,P. A., Abeysekera, K.H.T., Nugeliyadde, L. and Abeywickrama, K.P. (2001): Bioactivity of the essential oil of Cymbopogon citratus(Lemongrass) on Sitophilus oryzae (L) (Coleoptera: Curcuolionidae) (Rice weevil), Proceedings of Sri Lanka Association of Advancement of Science, December 2001, 57, D160,161.