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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900 mL·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。

英文摘要:

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 5 at 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 was 77.40% and 95.28%，respectively. The results also showed that treatment with 2 times 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.

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