摘要 : Field studies were conducted in Uttar Pradesh, India, during the 2206/07 and 2007/08 kharif seasons, to determine the effect of some insecticides against the yellow stem borer (YSB), <i>Scirpophaga incertulas</i> in deep water ric... 展开 Field studies were conducted in Uttar Pradesh, India, during the 2206/07 and 2007/08 kharif seasons, to determine the effect of some insecticides against the yellow stem borer (YSB), <i>Scirpophaga incertulas</i> in deep water rice cv. Jalpriga. The treatments comprised chlorpyrifos at 1000 g a.i., carbofuran at 1000 g a.i./ha, deltamethrin at 15 g a.i., indoxacarb at 30 g a.i., ethiprole + imidacloprid at 100 g a.i., thiamethoxam + lambda-cyhalothrin at 33 g a.i., indoxacarb + lambda-cyhalothrin at 29 g a.i., spinocyn A + spinocyn D at 56 g a.i. and monocrotophos at 500 g a.i./ha and untreated control. Onservations on the pest infestation and yield were recorded. Results showed that all the insecticidal treatments were superior to the untreated control during both seasons. During the 2006/07 kharif season, the thiamethoxam + lambda-cyhalothrin treatment was the most promising with 1.8% YSB infestation, followed by chlorpyriphos and indoxacarb, with 1.9 and 1.9% YSB infestation, respectively. However, during the 2007/08 kharif season, thiamethoxam + lambda-cyhalothrin, indoxacarb + lambda-cyhalothrin and spinosyn A + spinosyn D, which recorded 1.3, 1.5 and 1.6% YSB infestation, respectively, were the most promising treatments and were significantly superior compared to the untreated control. The grain yield data also revealed that all the insecticidal treatments were significantly superior compared to the untreated control and were comparable to the control insecticide monocrotophos. 收起