8种杀菌剂在不同施药时期对小麦赤霉病的防效分析  

The Analysis of Efficiency of Fight Fungicides against Wheat Scab at Different Application Periods

作　　者：于海艳 吴优 张明 陈之政 YU Haiyan;WU You;ZHANG Ming;CHEN Zhizheng(Sucheng District Agricultural Technology Extension Center,Jiangsu Suqian223800,China;Suqian Agricultural Technology Comprehensive Service Center,Jiangsu Suqian223800,China)

机构地区：[1]宿城区农业技术综合服务中心,江苏宿迁223800 [2]宿迁市农业技术综合服务中心,江苏宿迁223800

出　　处：《现代农药》2021年第5期60-64,共5页MODERN AGROCHEMICALS

基　　金：江苏现代农业产业技术体系建设项目(JATS[2020]279);江苏省现代农业重点及面上项目(BE2018378)。

摘　　要：近年来,由镰刀菌(Fusarium spp.)引起的小麦赤霉病成为宿迁地区小麦的主要流行病害之一,严重危害小麦生产安全。为探明不同药剂在不同施药时期对小麦赤霉病的防效,以筛选出防效最佳的施药方案,笔者采用8种不同杀菌剂对小麦3个生育阶段组合成的4个施药时期进行药剂处理。结果表明,小麦扬花初期1次施药防效最高的药剂为丙硫菌唑·戊唑醇,防效达93.64%;小麦扬花初期及灌浆初期2次施药防效最高的药剂为丙硫菌唑·戊唑醇,防效达96.96%。在小麦扬花初期及灌浆初期2次用药的防效最佳,高于扬花初期1次用药防效,灌浆中后期用药对于防效影响较小。In recent years,wheat scab caused by Fusarium spp.has become one of the main wheat diseases in Suqian,which seriously endangers the safety of wheat production.In order to investigate the control effects of different pesticides on wheat scab in different application periods,we used eight different fungicides to treat four application periods composed of three growth stages of wheat.The results showed that the highest efficiency on the once application of fungicides at the early stage of wheat blooming has been achieved by applying prothioconazole·tebuconazole,with the efficiency reaching up to 93.64%.By applying cyanocynoxystrobin·tebuconazole for twice applications at the early blooming stage and early filling stage,the greatest reaching reached up to 96.96%.When performing application of fungicides twice at the early flowering stage and early grain filling stage,the efficiency was higher than once application at the early stage of blooming stage.In addition,the application at the medium stage of grain filling showed lower efficiency.

关 键 词：小麦赤霉病 杀菌剂 扬花期 灌浆期 防效 

分 类 号：S482.2[农业科学—农药学]