Field efficacy of flubendiamide 20WG against rice leaffolder, Cnaphalocrocis medinalis (Guenee) and yellow stem borer, Scirpophaga incertulas (Walker) in basmati rice

efficacy of flubendiamide 20WG against rice leaf folder, Cnaphalocrocis medinalis and yellow stem borer, Scirpophaga incertulas (Walker) Abstract Rice leaf folder, Cnaphalocrocis medinalis (Guenee) and yellow stem borer, Scirpophaga incertulas (Walker) are the two major insect pests of rice causing considerable damage in India. Various strategies have been employed for managing these insect pests and insecticides as chemical control factors are the first line of defense. Thus, identification of new molecules with selective properties, novel mode of action, low toxicity to non-targets and environmental safety is required with a view of sustainable pest management. A number of novel insecticides have been registered for insect control in agriculture. A major advantage of these insecticides is that they act on insect biological processes and also have greater selectivity to target specific species. Therefore, flubendiamide 20 WG was evaluated at farmers , field in basmati rice during Kharif , 2020 to access its efficacy against rice leaf folder and yellow stem borer. Foliar spray of flubendiamide 20 WG @ 25 g a.i. ha -1 effectively reduced the infestation of rice leaf folder and yellow stem borer. Foliar application of flubendiamide 20 WG (25g a.i. ha - 1 ) did not cause any phyto toxicity symptoms on the crop. Average grain yield (37.14 q ha -1 ) was observed in twice foliar application of flubendiamide 20 WG @ 25 gm a.i. ha -1 as compared to control (32.24 q ha -1 ).