论文部分内容阅读
[目的]验证240 g/L氟啶虫胺腈SC防治番茄上烟粉虱的效果。[方法]采用温室和大田试验方法,测定240 g/L氟啶虫胺腈SC对番茄上烟粉虱的防效。[结果]温室中,240 g/L氟啶虫胺腈SC使用量72~108 g a.i./hm2时,3~14 d烟粉虱成虫、若虫防效均达90%以上。大田中,108 g a.i./hm2使用量对成虫和若虫3~14 d防效分别达86.8%和70.4%以上;72 g a.i./hm2效果较差。[结论]240 g/L氟啶虫胺腈SC可有效防治温室番茄上烟粉虱,大田使用时要采用较高使用量。
[Objective] The purpose was to verify the effect of 240 g / L nitenafl SC in controlling Bemisia tabaci on tomato. [Method] The control effect of 240 g / L nitenafluron SC on Bemisia tabaci (Bemisia tabaci) was determined by greenhouse and field experiments. [Result] The control efficiency of adults and nymphs of Bemisia tabaci (Bemisia tabaci (Bemisia tabaci, Bemisia tabaci, Beesia japonica and B. tabaci was over 90% at the dosage of 72 ~ 108 g a.i./hm2 with 240 g / L nitenafos SC in greenhouse. In the field, the control effect of 108 g a.i./hm2 on adults and nymphs was 86.8% and 70.4% respectively from 3 to 14 days. The effect of 72 g a.i./hm2 was poor. [Conclusion] 240 g / L nitenpyram SC could effectively control Bemisia tabaci on greenhouse tomato, and higher dosage should be used in field.