伏毛铁棒锤生物碱与高效氯氟氰菊酯复配剂对小菜蛾的联合毒力作用  

Co-toxicity of Mixture of Alkaloid from Acontium flavum Hand.-Mazz. and Lambda-cyhalothrin against Plutella xylostella

作　　者：张玉粉[1] 尤江[1] 郝凤霞[1] 杨敏丽[2] 

机构地区：[1]宁夏大学能源化工重点实验室,银川750021 [2]上海师范大学生命与环境科学学院,上海200234

出　　处：《农药》2013年第12期911-913,920,共4页Agrochemicals

基　　金：宁夏自然科学基金(NZ1135);上海师范大学理科科研项目(SK201337)

摘　　要：[目的]以小菜蛾为试虫,研究伏毛铁棒锤生物碱和高效氯氟氰菊酯的室内联合毒力。[方法]采用Bliss法、三坐标法和Sun法对联合毒力效果进行评价,优选最佳的复配比例。[结果]伏毛铁棒锤生物碱和高效氯氟氰菊酯复配后有增效作用,最佳配比为4∶1,在该配比下,共毒系数为173.28。[结论]复配剂对小菜蛾的LC50值为1.10×103mg/L,与2种单剂(伏毛铁棒锤生物碱LC50值5.64×103mg/L,高效氯氟氰菊酯LC50值13.35×103mg/L)相比,活性明显提高。[Aims] The toxicities of mixture of total alkaloids from Acontium flavum Hand.-Mazz. and lambda-cyhalothrin against Plutella xylostella L. were studied. [Methods] The effect of co-toxicity was evaluated by the methods of Bliss, three coordinates and Sun, respectively. Furthermore, the best ratio of the two alkaloids was optimized. [Results] The results showed that the mixtures of total alkaloid from A. flavum and lambda-cyhalothrin had obvious synergism, and the co-toxicity coefficient （CTC） was 173.28 under the proportion of 4 ： 1. [Conclusions] The insecticidal activity of the mixture was tested against P. xylostella, compared with the signal medicament of alkaloid from A. flavum with the LC50 of 5.64 × 10^3 mg/L and lambda-cyhalothrin of 13.35 × 10^3 mg/L, the mixture exhibited more toxicity to P. xylostella with the LC50 of 1.10× 10^3 mg/L.

关 键 词：伏毛铁棒锤 高效氯氟氰菊酯 小菜蛾 复配 联合毒力 

分 类 号：S482.3[农业科学—农药学]