Efficacy of tetraniliprole 200sc against rice yellow stem borer scirpophaga incertulas (wlk.) and leaf folder cnaphalocrocis medinalis guen.

Field experiments evaluated the toxicity, safety and phytotoxic effect of tetraniliprole 200SC in rice. In first and second season trials, tetraniliprole @ 50 and 60 g a.i. ha^-1 applied thrice at 14 days interval significantly reduced the damage by stem borer Scirpophaga incertulas (Wlk.) (52.03- 54.68; 47.79- 52.80%, respectively); and leaf folder Cnaphalocrocis medinalis Guen. (35.74- 40.72; 26.90- 31.25%, respectively). Tetraniliprole at all the evaluated doses only slightly reduced the natural enemies viz., coccinellids, spiders, mirids and rove beetles; these reduced immediately after spraying but increased after ten days of spray. Foliar application of tetraniliprole @ 60, 120 and 240 g a.i. ha^-1 in rice did not cause any phytotoxic symptoms.