几种药剂防治白萝卜蚜虫、烟粉虱试验效果

The Application of Insecticides for Control of Aphides and Plant White Louses on White Radish

为探索防治白萝卜蚜虫、烟粉虱安全高效的药剂,减少农药用量,降低残留,使生产的白萝卜符合出口国要求,我们选择了几种药剂防治白萝卜蚜虫、烟粉虱的药剂,进行了田间试验。试验表明,在蚜虫、烟粉虱混合发生初期,用10%吡虫啉可湿性粉剂15g/667m2,其药后5d、7d对蚜虫校正防效达到97.8%、95.8%;用1%除虫菊素-苦参碱微囊悬浮剂75mL/667m2,其药后5d、7d对烟粉虱校正防效达到73.9%、78.2%,在生产上应每隔7d用药1次,连用2次。以上2种药剂对白萝卜安全且有较好的防治效果。

Field experiments for the control of aphides and plant white louses on white radish were carried out.At the early stage of aphides and plant white louses using Imidacloprid 10% WP with dosage of 15g/667m^2, the Control effects for aphides were 97.8% and 95.8%after the application at 5d and 7d; using Pyrethrummatrinel% CS with dosage of 75mL/667m2, the Control effects were 73.9% and 78.2%,respectivey.