Insecticidal effects of two medicinal plants Polygonum hydropiper L. and Abrus precatorius L. leaves against the rice weevil Sitophilus oryzae L. (Coleoptera: Curculionidae). J. Biodivers. Conserv. Bioresour. Manag. 2020;5(2):107-114. doi:10.3329/jbcbm.v5i2.44921