枯草芽孢杆菌可湿性粉剂对玉米大斑病的田间防效  

Field Efficacy of Bacillus subtilis Wettable Powders against Northern Corn Leaf Blight

作　　者：张振铎[1] 陈俸 商禹 常志龙 吕跃星[1] 

机构地区：[1]吉林省农业技术推广总站,吉林长春130021 [2]吉林市昌邑区农业技术推广中心,吉林昌邑132002 [3]桦皮厂镇农业技术推广站,吉林昌邑132205

出　　处：《山西农业科学》2013年第6期620-622,共3页Journal of Shanxi Agricultural Sciences

摘　　要：玉米大斑病发生期,在田间采用不同处理方式对玉米大斑病进行处理,并测定其对玉米大斑病的田间防治效果及其对玉米的安全性。结果表明,4种施药处理对玉米大斑病均有一定防效,枯草芽孢杆菌单次用量300g/hm2喷药2次、450g/hm2喷药1次、300g/hm2加高效助剂有机硅75g/hm2喷药2次、450g/hm2加高效助剂有机硅75g/hm2喷药1次的防治效果分别为81.25%,68.45%,82.63%,74.33%;试验剂量范围内,枯草芽孢杆菌对玉米生长安全;其中,枯草芽孢杆菌单次用量300g/hm2喷药2次对玉米大斑病有很好的防治作用,可在生产上大面积使用。To test field efficacy and safety of Bacillus subtilis wettable powders against northern corn leaf blight, 4 treatments of Bacillus subtilis wettable powders spraying were applied in the field in the period of corn leaf blight occurrence. 4 treatments all showed control efficacy to northern corn leaf blight. The control efficacy of spraying 300 g every hectare twice, spraying 450 g every hectare once, spraying 300 g every hectare added 75 g organosilicone every hectare twice and spraying 450 g every hectare added 75 g organosilicone every hectare once were 81.25% ,68.45% ,82.63% and 74.33% respectively. Bacillus subtilis is safe to the corn plants at the tested dosage range. Spraying 300 g Bacillus subtilis every hectare twice exhibit satisfactory control efficacy against northern corn leaf blight, and might be recommended for corn production.

关 键 词：枯草芽孢杆菌 玉米大斑病 田间防效 

分 类 号：S435.131[农业科学—农业昆虫与害虫防治]