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通过田间对比试验,对21.6%螺虫乙酯.噻虫啉悬浮剂防治番茄田烟粉虱的效果进行评价。结果表明,在番茄田烟粉虱一龄若虫发生盛期用21.6%螺虫乙酯.噻虫啉悬浮剂对水喷雾,对番茄安全,对烟粉虱若虫具有较高的防治效果,667m2用30mL、40mL对烟粉虱若虫的防效达77.7%、92.9%,持效期超过28d。其防效相当或好于240g/L螺虫乙酯悬浮剂(亩旺特)的防效,远优于生产上常规药剂35%吡虫啉悬浮剂的防效。
Through the field comparative test, the effect of 21.6% spirotetramate and thiacloprid suspension on controlling Bemisia tabaci in tomato field was evaluated. The results showed that 21.6% spirotetramat was used in the infancy of the first instar nymphs of B. tabaci on tomato field, while thiacloprid suspension was safe for tomato and control of B. tabaci for 668m2 The control effects of 30mL and 40mL on B. tabaci nymphs were 77.7% and 92.9%, respectively, and their persistence periods exceeded 28 days. The control effect is quite good or better than 240g / L spirotetravon SC (Mu Wang Te) control effect, far superior to the production of conventional pesticides 35% imidacloprid suspension control effect.