40%氟硅唑EC对亚麻白粉病的防治效果研究  

The Control Efficacy of 40% Flusilazole EC on Powdery Mildew in Flax

作　　者：何建群 张金莲 张玲 

机构地区：[1]云南省大理州宾川县植保植检站,云南宾川671600 [2]云南省大理州经济作物研究所,云南宾川671600

出　　处：《中国麻业科学》2011年第1期8-10,15,共4页Plant Fiber Sciences in China

摘　　要：在亚麻不同生育期,用40%氟硅唑EC 8 000倍液防治亚麻白粉病5次、4次、3次、2次、1次的结果表明,防治效果随着防治次数的减少而降低;经济性状和优质原茎所占比例随着防治次数的减少而降低;原茎和种子的综合产值随着防治次数的减少而降低;防治4次的纯产值高于防治5次,纯产值从防治4次开始随着防治次数的减少而降低。因此,亚麻白粉病的最佳药剂防治时期应从快速生长期开始,在快速生长期、现蕾期、开花期、盛花期这4个时期各防治1次,就能取得很好的防治效果,达到减少防治成本,提高经济效益的目的。The control efficacies of 8000 times dilution of 40% flusilazole EC on powdery mildew in flax at different growth stage with 1,2,3,4 and 5 times applications were studied.The results showed that the lesser the times of application were,the lower the control efficacy was.The economic traits index,the proportion of good quality stems,the values of stem and seed also decreased with the reduction of application times.The value with four times application was higher than that with five times application.The optimal application began from rapid growth period of flax.The control efficacy was good,when the fungicide was applied each one times at rapid growth period,flowering period and blooming period.

关 键 词：氟硅唑 亚麻白粉病 防治 次数 

分 类 号：S563.2[农业科学—作物学]