Baragamaarachchi, R.Y., Karunarathna, N.M.K., Weerasena,O.V.D.S.J., Nishantha,K.M.D.W.P.,Madanayake,M.A.R.A. and Samarasekara, R. (2016)Evaluation of insecticidal activity of Sri Lankan Bacillus thuringiensis kurstaki against Plutella xylostella and Cnaphalocrocis medinalis Sri Lanka Association for the Advancement of Science Proceedings of the 72^nd Annual Sessions -2016 p. 15