生物农药对油菜主要害虫的防治效果  被引量:6

Control Effect of Bio-Pesticides Against Main Rape Pests

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作  者:金小靖 康晓慧[1] 周强 蒋欣东 李杰[1] 张洪[1] JIN Xiaojing;KANG Xiaohui;ZHOU Qiang;JIANG Xindong;LI Jie;ZHANG Hong(School of Life Science and Engineering,Southwest University of Science and Technology,Mianyang,Sichuan 621010;Yongming People’s Government,Mianyang,Sichuan 621102,China)

机构地区:[1]西南科技大学生命科学与工程学院,四川绵阳621010 [2]四川省绵阳市三台县永明镇人民政府,四川绵阳621102

出  处:《贵州农业科学》2020年第4期57-62,共6页Guizhou Agricultural Sciences

基  金:国家农业现代化四川创新团队项目“油菜病虫防治研究”(2014zd3119)。

摘  要:为油菜害虫绿色防控提供参考,以绵油11号为试材,采用田间试验研究5种生物农药(苦参碱、鱼藤酮、苏云金杆菌、苦皮藤素和球孢白僵菌)对油菜3种主要害虫(菜青虫、小菜蛾和蚜虫)的防控效果。结果表明:1 275 mL/hm^2苦参碱对菜青虫、小菜蛾和蚜虫的防效均较好,分别为87.79%、68.70%和80.40%;1 050g/hm^2鱼藤酮对蚜虫的防效最佳,达82.79%;球孢白僵菌对菜青虫的防效最佳,1 200~1 500g/hm^2浓度越高效果越好;防治蚜虫鱼藤酮宜选1 050g/hm^2,苏云金杆菌宜选750g/hm^2;防治小菜蛾苏云金杆菌宜选750g/hm^2,其他药剂可适当提高施药浓度。To provide references for green control against rape pests,a field experiment was conducted with Mianyou 11 as the test material to explore the control effects of five bio-pesticides(matrine,rotenone,Bacillus thuringiensis,celangulin and Beauveria bassiana)against three main pests(Pieris rapae,Plutella xylostella and aphid).Results:The control effects of 1 275 mL/hm^2 matrine against P.rapae,P.xylostellaand aphid were 87.79%,68.70% and 80.40% respectively.The control effect of1 050 g/hm^2 rotenone against aphid was 82.79%.The control effect of B.bassiana against P.rapae turned better with increasing B.bassianaconcentration among 1 200-1 500 g/hm^2.1 050 g/hm^2 rotenone or 750 g/hm^2 B.thuringiensis could be applied against aphid in rape.750 g/hm^2 B.thuringiensis could be applied against P.xylostella in rape and the concentration of other bio-pesticides could be increased appropriately.

关 键 词:油菜 小菜蛾 菜青虫 蚜虫 生物农药 防治效果 

分 类 号:S476[农业科学—农业昆虫与害虫防治]

 

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