不同药剂对小麦赤霉病飞防效果试验

Experimental study on the effect of different pesticides on wheat scab control

为筛选适合小麦赤霉病防治的药剂,本试验选择40%丙硫·戊唑醇悬浮剂(T_(1))、43%戊唑醇悬浮剂(T_(2))、30%肟菌·戊唑醇悬浮剂(T_(3))、200 g/L氟唑菌酰羟胺悬浮剂(T_(4))、30%丙硫菌唑可分散油悬浮剂(T_(5))和25%氰烯菌酯悬浮剂(T_(6))6种药剂,以不喷药作为空白对照(CK),分别以说明书最适浓度开展对小麦赤霉病的飞防效果研究。结果表明,6种药剂对小麦生长安全性均无影响,均可控制小麦赤霉病的发生程度,减轻小麦赤霉病对产量的影响,其中,43%戊唑醇悬浮剂处理(T_(2))的小麦病穗防效、病指防效最高,分别为90.04%、94.94%;产量比空白对照增产63.15%,综合表现最佳,可以在江淮地区的小麦赤霉病防治中应用。

In order to screen for suitable pesticides for the prevention and control of wheat scab,this experiment selected six pesticides:40%propiconazole·tebuconazole suspension emulsion (T_(1)),43%tebuconazole suspension (T_(2))30%oxime bacteria·tebuconazole suspension (T_(3)),200 g/L fluconazole hydroxylamine suspension (T_(4)),30%propiconazole dispersible oil suspension (T_(5)),and 25%cyanobacterium ester suspension (T_(6)).The control (CK) was not sprayed,and the flight control effect of wheat scab was studied at the most suitable concentration in the instructions.The results showed that all six pesticides had no effect on the safety of wheat growth and could control the occurrence of wheat scab and reduce the impact of wheat scab on yield.Among them,the 43%tebuconazole suspension agent treatment(T_(2))had the highest effect on wheat disease control,with 90.04%and 94.94%,respectively.The yield increased by 63.15%compared to the control,and the comprehensive performance was the best.It can be applied in the prevention and control of wheat scab in the Jianghuai region.