author(s)
Sweety Kumari, Munna Yadav, Rabindra Prasad, Rajendra Prasad and Uday Kumar

abstract
The rice leaf folder, Cnaphalocrocis medinalis (Guenee) (Lepidoptera: Pyralidae) was earlier considered a minor pest in many Asian countries. But after 1980 it has become a major pest of rice due to changing agro climatic conditions and new cultural practices. Therefore, present studies on to check the bio-efficacy of newer molecules of different insecticides against leaf folder of rice. Among the nine insecticides, application of Spinetoram 6SC + Methoxyfenozide 30SC @ 400 ml/ha was found to be most effective against leaf damage in case of incidence in both years 2016 and 2017. But it was at par with spinetoram 6 % SC + methoxyfenozide 30 % SC @ 375 ml/ha and flubendiamide 48% SC @ 50 ml/ha. This new type of chemical insecticide has been very successful in reducing the population of leaf folder in a very short time and it also causes very little damage to the environment.