Chemical Methods of Leaf Extraction of Bankalmi, Polygonum hydropiper for Controlling Rice Hispa Beetles, Dicladispa armiger (Olivier) (Coleoptera: Chrysomelidae) in Bangladesh

N.M. Mozaddedul Haque, M. Fazle Rabbi, A.N.M. Rezaul Haq Karim, Mainul and S.K. Biswas

Journal of Biological Sciences 2 ( 12 ): 782 - 784 , 2002