Citation:Paranagama, P.A.,Kodikara, K.A.B.C.H., Nishantha, H.M.I. and Mubarak, A.M. (2002): Effect of azadirachtin on growth and activity of mid-gut enzymes of cockroach Periplaneta americana, Journal of National Science Foundation in Sri Lanka, 29 (1&2), 69-70. Paranagama, P.A.,Kodikara, K.A.B. C.H.,Nishantha, H.M.I. and Mubarak, A.M. (2000): Effect of azadirachtin on midgut enzymes of cockroaches (Periplanata americana), Proceedings of Sri Lanka Association of Advancement of Science, December 2000, 56, D 263, 187.
