The present investigation entitled “Efficacy of certain chemical insecticides against leaf folder, Cnaphalocrocis medinalis Guenee.” was conducted during July, 2015 at Agricultural research farm, SHIATS, Allahabad. The occurrence of leaf folder commenced from 33rd standard week (August 2nd week) with an average % infestation. The leaf folder infestation increased and gradually reached peak level of % infestation at 38th standard week (September 3rd week). |