Bioefficacy of certain insecticides against rice yellow stem borer, Scirpophaga incertulas (Walker)

Abstract

A field experiment was conducted to evaluate the efficacy of ten insecticides against Yellow Stem Borer (YSB), Scirpophaga incertules (Walker) infestation in rice variety Samba mashuri, BPT-5204. All the treatments were found significantly effective in reducing the infestation of YSB and increasing the yield compared with control. Chlorantraniliprole 18.5 SC @ 0.3 mL/L shows most effective with lowest dead hearts and white earheads and cartap hydrochloride 50 SP @ 2 g/L shows least effective.