Open Access Research Paper Views (280) Download (6) Optimization of the insecticidal effect of essential oils of three medicinal plants against rice weevil Sitophilus oryzae L. Coleoptera: Curculionidae) Ngatanko Iliassa, Ngamo Tinkeu Léonard Int. J. Agron. Agri. Res.7( 2), 55-63, August 2015. Key: CombinationEssential oilMedicinal plantsSitophilus oryzaeSynergetic effect Details