高含量苏云金杆菌制剂防治高山甘蓝小菜蛾的田间药效  

Field Efficacy of Bacillus thuringiensis with High Level of Insecticidal Crystal Protein against Cabbage Diamondback Moth in Mountain

作　　者：龙同[1,2] 罗业文 蔡建华[4] 陈洪波 曹春霞[1,2] 杨妮娜[1,2] 黄大野[1,2] 程贤亮[1,2] 杨自文[1,2] 

机构地区：[1]湖北省生物农药工程研究中心,武汉430064 [2]湖北省农业科技创新中心生物农药分中心,武汉430064 [3]利川市农业局,湖北利川445400 [4]嘉鱼县农业局,湖北嘉鱼437200

出　　处：《湖北农业科学》2014年第24期6015-6017,共3页Hubei Agricultural Sciences

基　　金：国家"863"计划项目(2011AA10A201);湖北省农业科技创新中心资助项目(2007-620-001-03-08)

摘　　要：在鄂西北高山地区，采用喷雾法进行高含量苏云金杆菌（Bacillus thuringiensis）制剂（50000IU／mg可湿性粉剂，晶体蛋白含量为8．3％）防治小菜蛾的田间药效试验。试验结果表明，50000IU／mg苏云金杆菌可湿性粉剂对小菜蛾防效显著，药后7d防效达到91．0％～95．9％，优于对照药剂1．8％阿维菌素乳油。苏云金杆菌作为一种全球公认的低毒、环保、安全生物农药，50000IU／mg苏云金杆菌可湿性粉剂可以在高山十字花科蔬菜种植区大面积推广．推荐使用剂量675-900g／hm^2。In the northwestern Hubei alpine regions, a spray method was used to study the field efficacy of Bacillus thuringiensis （Bt） with high level of insecticidal crystal protein （50 000 IU/mg BT WP ,with 8.3% crystal protein content） against mountain cabbage diamondback moth. The results showed that the recommended amount of 50 000 IU/mg of BT WP against 2-3 instar larvae of PluteUa xylosella L. was 675- 900 g per hectare, with significant control efficacy. The controlling effect was 93.6% and 91.0%, respectively after using pesticide 7 d later. The controlling effect of BT was significantly higher than the control pesticide named 1.8% Avermectin EC. Bt was a kind of famous andsafe biological pesticide with environmental protection, which could be used on large scale in areas of growing cruciferous vegetable in the mountains.

关 键 词：高含量苏云金杆菌(Bacillus thuringiensis) 50000IU/mg苏云金杆菌可湿性粉剂 高山蔬菜 小菜蛾 田间药效 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]