22%联苯·噻虫嗪悬乳剂对烟粉虱和温室白粉虱的防治效果研究

Effect of 22%Bifenthrin·Thiamethoxam SE Against Bemisia tabaci and Trialeurodes vaporariorum

为评价22%联苯·噻虫嗪悬乳剂对烟粉虱和温室白粉虱的防治效果,进行了田间药效试验。结果表明,该药剂在600 mL/hm^(2)剂量下具有较好的速效性和持效性,药后3、7、14 d对烟粉虱防治效果分别为85.58%、80.41%、81.36%,对温室白粉虱的防治效果分别为89.85%、87.97%、83.24%,均显著高于对照药剂2.5%联苯菊酯乳油和25%噻虫嗪水分散粒剂。

To evaluate the effect of 22%bifenthrin·thiamethoxam SE against Bemisia tabaci(Gennadius)and Trialeurodes vaporariorum(Westwood),a field trial was carried out.The results showed the pesticide had good short-term effectiveness and persistence at the dose of 600 mL/hm^(2).The effect of the pesticide against Bemisia tabaci was 85.58%,80.41%and 81.36%respectively at 3 days,7 days and 14 days after the treatment.The effect of the pesticide against Trialeurodes vaporariorum was 89.85%,87.97%and 83.24%respectively at 3 days,7 days and 14 days after the treatment.The effects were significantly higher than those of control pesticides 2.5%bifenthrin EC and 25%thiamethoxam WG.