河南省小麦纹枯病防治关键时间和关键技术研究

Critical Time and Technique of Wheat Sharp Eyespot Prevention in Henan

研究了小麦纹枯病防治关键时间和关键技术。防治关键时期一是冬前防治以拌种为主控制入侵 ,二是春季药剂防治为关键控制扩展 ,同时搞好肥水管理。河南省小麦纹枯病在返青 -拔节气温上升到 2 0～ 2 5℃时防治效果较好 ,时间为 3月 1 0日～ 4月 2 0日。拌种以三唑酮较好 ,喷雾以井冈霉素和三唑酮为主 ,适时喷雾能有效控制小麦纹枯病的流行和发展 ,此外还应利用抗耐品种和加强农业防治等措施。

Critical time and technique of preventing wheat from sharp eyespot has been studied. On one hand going on seed treatment before the winter is sowed to control the invasion of the germs.Then spray fungicide to control the state of disease to be worse in the wheat field in spring. The third is to strengthen the agricultural prevention and take measure by the management of fertilizer and water.