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

abstract
Leptocorisa acuta Thunberg (Hemiptera: Alydidae) is an important and common pest of rice which is also called "head bug "or" ear bug". The present experiment was carried out to determine the relative efficacy of some newer insecticides against gundhi bug. The experiment was carried out at Rice Research Farm, RAC, B.A.U, Kanke, Ranchi, Jharkhand during kharif, 2016 and 2017. In this experiment nine different chemical insecticides were used to know which insecticide is most effective in reducing the population of gundhi bug. The minimum pest population (0.85GB/10 hills) was recorded in the treatment comprising of the new combination product of Spinetoram 6SC+ Methoxyfenozide 30 SC @400ml/ha. But it was at par with spinetoram 6 SC + methoxyfenozide 30 SC @ 375 ml/ha, flubendiamide 48 SC @ 50 ml/ha and carbofuran 3 G @ 30 kg/ha followed by need based foliar spray with triazophos 40 EC @ 1500 ml/ha. Peak duration of occurrence of gundhi bug was observed almost from 95 DAT and onward period during the experiment.