On the persistent toxicity of various insecticides sprays to first instar caterpillars of Cnaphalocrocis Medinalis guenee, the rice leaf-roller

Mohandas, NNair, M R G KKAU2019-07-162019-07-161976Agricultural Research Journal of Kerala, 14(1), 94-96.http://krishikosh.egranth.ac.in/handle/1/5810114751ennullOn the persistent toxicity of various insecticides sprays to first instar caterpillars of Cnaphalocrocis Medinalis guenee, the rice leaf-rollerArticle