新型杀菌剂四唑吡氨酯对黄瓜霜霉病的田间防治效果评价

目的]明确新型杀菌剂10%四唑吡氨酯悬浮剂对黄瓜霜霉病的防治效果,为生产上应用提供科学依据。方法]采用喷雾法于2016—2017年在山东省烟台市进行了田间药效试验。结果]10%四唑吡氨酯悬浮剂对黄瓜霜霉病防治效果良好,第3次施药后14 d,30~90 g a.i./hm2处理防效仍在88.62%以上,优于对照药剂50%烯酰吗啉水分散粒剂(225 g a.i./hm2)。结论]10%四唑吡氨酯悬浮剂是一种防治黄瓜霜霉病较为理想的新型药剂,值得在黄瓜生产中推广应用。

Evaluation of Control Efficacy of New Fungicide Picarbutrazox on Cucumber Downy Mildew

Aims]The paper aims to evaluate the control effect of new fungicide picarbutrazox 10% SC on cucumber downy mildew and to provide theoretical basis for scientific prevention and control.Methods]Field trials were carried out by routine sprayingmethod inYantai city of Shandong province during the year 2016 to 2017.Results]Picarbutrazox 10% SC could effectively control cucumber downy mildew.14 Days after three sprays,the control efficacy was over 88.62% at dosage of 30 to 90 g a.i./ha,which performed better control effect than the control fungicide dimethomorph 50% WG(225 g a.i./ha).Conclusions]Picarbutrazox 10% SC was ideal agent to control cucumber downy mildew,and it is worthy to promote the use in cucumber roduction.