纹枯病、稻瘟病是水稻生长中后期两大主要病害,对水稻安全生长和产量品质影响严重,而在水稻生产上两病的防治一般都是选用各自对路的单剂进行混用,或者选用复配剂进行防治纹枯病和稻瘟病。新型杀菌剂吡唑醚菌酯不仅对稻瘟病具有良好的防效,而且对纹枯病也具有较好的防效。为了进一步明确吡唑醚菌酯总体防治水稻纹枯病、穗颈瘟的防治效果及其应用技术,为大面积推广应用提供科学依据,受有关企业单位的委托,2015年8月我们在江苏南通通州区兴东镇进 Sheath blight and rice blast are two major diseases in the middle and later stages of rice growth, which have a serious impact on the safety of rice growth and yield and quality. However, the prevention and treatment of the two diseases in rice production are generally selected by mixing with each other on a single route, Compounding agents for the control of sheath blight and blast. The new bactericide pyraclostrobin not only has good control effect on rice blast, but also has good control effect on sheath blight. In order to further clarify the overall prevention and control effect of pyraclostrobin against rice sheath blight, panicle blast and its application technology, to provide a scientific basis for large-scale popularization and application, commissioned by the relevant enterprises, in August 2015 we in Nantong, Jiangsu Tongzhou District Hing Tung town into