70%吡虫啉WS对小麦、玉米等作物害虫的防效

Control Effects of Imidacloprid 70% WS on Wheat and Maize Pests

采用70％吡虫啉WS处理种子．考察其对小麦穗蚜、玉米蚜虫和花生蛴螬的防效。田间药效试验结果显示：70％吡虫啉WS1．33～2．67g处理对小麦穗蚜的防效为85．1％～92．6％，对花生蛴螬的防效为76．5％～92．4％；4．00～8．00g处理对玉米蚜虫的防效为79．7％～96．2％。70％吡虫啉WS处理1kg小麦、玉米、花生种子的合理有效成分用量分别为2．00～2．67g、6．00～8．00g、2．00～2．67g。

The control effects of imidacloprid 70% WS to wheat aphid, maize aphid, peanut grub were investigated by seed treatment. The efficacy trials results showed that the control effects of imidacloprid 70% WS 1.33-2.67 g on wheat aphid and peanut grub were 85.1%-92.6% and 76.5%-92.4%, respectively. The control effects of imidacloprid 70% WS4.00-8.00 g on maize aphid were 79.7%-96.2%. The reasonable active ingredient dosage of imidacloprid 70% WS to 1 kg wheat, maize, peanut seeds was 2.00-2.67 g, 6.00-8.00 g, 2.00-2.67 g.