Management of Paddy Yellow Stem Borer, Scirpophaga incertulus (Walker) with Flonicamid

摘要

The field study was conducted during 2018-19 with a rice variety, Moti, to evaluate the bio-efficacy of the pyridine group insecticide, flonicamid 50 WG alongside chlorpyrifos 19 ME, imidacloprid 17.8 SL, thiamethoxam 25 WG, and fipronil 5 SC against rice yellow stem borer, Scirpophaga incertulus Walker at BHU, Varanasi. Results showed that fipronil @ 75 g ai ha~(-1) was the most effective against the stem borer (2.8 dead hearts 1.6 white ears/10 hills after the first and the second sprays, respectively) but the yield was higher in flonicamid @ 100 g ai ha~(-1) treated plots (44.81 q ha~(-1)), it might be due to its role in enhancing the plant vigour to tolerate pest damage.