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

abstract
Gall midge (Orseolia oryzae Wood mason) is one of the major insect pests of rice in India. An experiment was conducted at Rice Research farm, RAC, B.A.U, Kanke, Ranchi to evaluate the bio-efficacy of newer molecules of different chemical insecticides against gall midge. Among the nine insecticides, application of Spinetoram 6SC +Methoxyfenozide 30SC @400ml/ha was found to be most effective against gall midge. The highest infestation of Gall midge was recorded in the untreated control plots throughout the experimental periods. Peak duration of occurrence of gall midge was observed almost from 40DAT and onward period during both years of experimentations.