小麦纹枯病田间药剂防治技术研究  

Study on Chemical Control Technique of Wheat Sharp Eyespot

作　　者：齐永霞[1] 陈莉[1] 丁克坚[1] 

机构地区：[1]安徽农业大学植物保护学院,安徽合肥230036

出　　处：《麦类作物学报》2015年第4期577-583,共7页Journal of Triticeae Crops

基　　金：国家科技支撑计划项目(2012BAD04B09)

摘　　要：通过田间小区试验,比较了不同杀菌剂与施药技术对小麦纹枯病的田间防效。结果表明,单剂拌种对小麦纹枯病的防效以5%的适乐丹最好,小麦拔节期其防效为72.75%,且持效期长;混剂拌种以混剂3(戊唑醇+三唑酮WP 1∶1)按种子重量的0.04%拌种防效最好,小麦拔节期其防效为55.94%;小麦拔节期药剂喷雾的防效以混剂5(戊唑醇+丙环唑EC 1∶1)按900mL·hm-2喷雾的防效最好;药剂不同处理技术对小麦纹枯病和小麦白粉病的防效均以混剂1(三唑酮WP+福美双WP 1∶9)按种子重量的0.04%拌种加混剂5分别在小麦拔节期和孕穗期各喷雾1次的防效最好,该处理措施在小麦腊熟期对小麦纹枯病的防效为77.40%,在孕穗期对小麦白粉病的防效为95.28%。综合各药剂在小麦不同生育阶段的防效,药剂拌种+拔节期喷雾+孕穗期喷雾的药剂防治策略总体控病效果最好,增产效果明显;其次是药剂拌种+拔节期喷雾。Control effect of single and mix-fungicides on wheat sharp eyespot were studied through field plot experiment in this work.The result showed that the control effect（CE）of seed treatment by 5% Celest Dan was the best among the single fungicides,the CE was 72.75% at jointing stage of wheat,and the sustained period of CE was the longest among same treatments.The CE of seed treatment by mix-fungicides 3（Tebuconazole＋Triadimefon WP 1∶1）was the best among the mix-fungicides,and the CE at jointing stage of wheat was 55.94%.The CE of spraying at jointing stage of wheat by mix-fungicides 5（Tebuconazole＋Propiconazole EC 1∶1）with the dosage of 900 mL·hm-2 was superior to the CE of spraying by others.The CE on sharp eyespot and powdery mildew through seed treatment by mix-fungicides 1（Triadimefon WP＋Arasan WP 1∶9）with one spraying of mix-fungicides 5at jointing stage and pre-booting stage of wheat was the best among different treatments.The CE on sharp eyespot of wheat at milk stage and powdery mildew at booting stage was77.40% and 95.28%,respectively.The results also showed that treatment with 2times spraying by fungicides（at jointing stage and booting stage）not only could effectively control the development of wheat sharp eyespot but also had a good effect on wheat yield.

关 键 词：小麦纹枯病 种子处理 防治效果 

分 类 号：S512.1[农业科学—作物学] S435.1