1.2%瑞拉菌素水乳剂防治小麦白粉病的效果  

Study on Control Efficiency of Zuelaemycin 1.2% SL Fluid to Powdery Mildew in Wheat

作　　者：何振才[1] 赵鹏涛[1] 李高潮[1] 罗红炼[1] 

机构地区：[1]陕西省杂交油菜研究中心小麦研究室,陕西大荔715105

出　　处：《麦类作物学报》2012年第5期986-988,共3页Journal of Triticeae Crops

基　　金：国家"863"计划项目(2007AA021503)

摘　　要：为了解瑞拉菌素对小麦白粉病的防治效果,用1.2%瑞拉菌素水乳剂在小麦田间进行不同喷施浓度、时间和次数试验。结果表明,在3个1.2%瑞拉菌素水乳剂喷施浓度(稀释600倍、700倍和800倍)中,600倍稀释液对小麦白粉病防治效果最好,防效达77.6%,保产作用为9.9%。从喷药次数看,用650倍的稀释液在小麦抽穗和扬花期喷施两次的防病效果最好,防效达74.4%,保产作用为10%;若喷施一次时,扬花期喷施的效果优于抽穗期喷施。To understand the effects of spraying diluted solution of zuelaemycin 1.2% SL fluid on controlling powdery mildew in wheat, field experiment was conducted with spraying at different time, different dilutions and times. Results showed that among the three dilutions of 600,700 and 800 times, better control effect was achieved by the 600 times dilution with controlling effect of 77.6% and protective effect of 9.9%. Spraying two times of 650 times dilution at before heading and after anthesis obtained the best controlling effect, with the controlling effect of 74.4% and protective effect of 10%. If spraying once, spraying at after anthesis was better than that at before heading. The result suggested that zuelaemycin 1.2% SL could effectively control mildew disease in wheat.

关 键 词：小麦白粉病 瑞拉菌素 防治效果 保产作用 

分 类 号：S512.1[农业科学—作物学] S435.121