甘薯茎线虫病田间防治药剂的筛选

Screening of Pesticides for Controlling Stem-nematode Disease of Sweet Potato in the Field

为筛选高效、低毒的甘薯茎线虫防治药剂,在大田测试了6个药剂的防治效果。结果表明,三唑磷微胶囊剂对甘薯茎线虫防治效果达83.51%,增产率为54.82%,投入产出比最高,为12.6,可替代高毒农药苯线磷在生产上防治甘薯茎线虫病,具有较好的推广应用前景。

For the screening of high-efficient and low-toxic pesticides to control sweetpotato stem-nematode, a field experi-ment for the control effects of six kinds of pesticides was conducted. The results showed that, the triazophos micro capsules had the control efficacy of 83.51% against sweet potato stem-nematode, with the yield increasing rate of 54.82% and the highest input-output ratio（12.6）, so it would effectively control sweet potato stem-nematode instead of highly toxic fenamiphos in agricultural production, and have the good promotion and application prospect.