Evaluation of Emulsifiable Concentrate and Granules Formulation of Chlorantraniliprole against Rice Stem Borer in Basmati Rice

Present study was conducted to assess the effectiveness of granular and liquid formulation of Chlorantraniliprole i.e. Chlorantraniliprole 0.4% GR (Ferterra) and Chlorantraniliprole 18.5% SC (Coragen) at farmers’ field. Chlorantraniliprole in both granular and liquid formulation for the management of stem borer in basmati rice gave better results than the recommended insecticides as well as the control where no insecticide was applied. The experiment was conducted in three districts of Punjab viz, Patiala, Jalandhar and Ludhiana at three locations each. Crop sown during the month of June and transplanted in the month of July following all the recommended practices was selected for the study. The dead hearts incidence and white earheads were significantly low in Ferterra and Coragen at all the locations. Number of dead hearts recorded before spray was above the economic threshold level of 2 per cent at all the locations, while after five days and ten days of spray, a significant reduction was recorded. Similar trend was observed in the per cent white ear produced (0.29–1.11% as compared to 3.59% in Patiala, 2.323.13% as compared to 6.30% in Jalandhar and 1.83–2.15 as compared to 4.23% in Ludhiana). Paddy yield under both the formulation of chlorantraniliprole was significantly higher than that of the control.