大白菜霜霉病药剂防治试验  

Effect of Chemical Control on Chinese Cabbage Downy Mildew

作　　者：陆仕凤 刘绸 

机构地区：[1]贵州清镇市红枫湖镇农业技术推广站,551400 [2]清镇市蔬菜工作办公室

出　　处：《长江蔬菜》2011年第12期68-69,共2页Journal of Changjiang Vegetables

摘　　要：2010年引进抑快净(噁唑菌酮.霜脲氰)、甲霜.锰锌和科佳(氰霜唑)3种新型药剂进行田间大白菜霜霉病防效试验。试验结果表明,参试的几种药剂和剂量对防治大白菜霜霉病都有明显效果,但以抑快净1 500倍液、抑快净1 800倍液和抑快净2 000倍液田间防效的持效性最长,药后15 d相对防效仍达90%以上,其次是科佳450倍液,药后15 d防效在80%以上。Control experiments of three pesticides,Yikuaijijng,Metalaxyl＋mancozeb,and Kejia in Chinese cabbage in open field were carried out.The results showed that,these pesticides had obviously effect on downy mildew control,but Yikuaijing 1 500 times,1 800 times,and 2 000 times had the best persistence efficiency in open field.After 15 days,the relative control efficiency was above 90%.The second is Kejia 450 times,after 15 days,the relative control efficiency was above 80%.

关 键 词：大白菜 霜霉病 药剂 防效试验 

分 类 号：S436.341[农业科学—农业昆虫与害虫防治]