阿维菌素与噻虫胺混配对烟蚜、B型烟粉虱的联合毒力测定  

The Synergistic Effect of Avermectins and Clothianidin to Myzus prsicae(Sulzer) and B Biotype Bemisia tabaci

作　　者：李伟[1,2] 任学祥[2] 宋旭明[1] 李慧婵 

机构地区：[1]山东潍坊烟草有限公司安丘分公司,山东安丘262100 [2]安徽省农业科学院植物保护与农产品质量安全研究所,合肥230031 [3]山东省安丘市实验中学,山东安丘262100

出　　处：《农药》2015年第8期610-612,共3页Agrochemicals

基　　金：学科建设项目"缓释型微囊种衣剂的研究应用"(15A1119);人才发展专项"农药创新与高工效施用技术研究"(13C1109)

摘　　要：[方法]采用叶片浸渍法和玻管药膜法测定阿维菌素和噻虫胺对烟蚜、烟粉虱的毒力及联合毒力,并加工成悬浮剂进行了田间试验。[结果]阿维菌素对烟蚜、烟粉虱的LC50值分别为1.014、0.317 mg/L,噻虫胺对烟蚜、烟粉虱的LC50值分别为2.191、4.212 mg/L;阿维菌素和噻虫胺按质量比1∶8混配对烟蚜的共毒系数为128.44,增效作用明显;按质量比1∶4混配对烟粉虱的共毒系数为171.34,增效作用显著。18%阿维菌素·噻虫胺悬浮剂150 mg/L质量浓度药后3、7、14 d对烟蚜防效分别为90.6%、84.9%和79.4%,对烟粉虱防效分别为94.2%、90.6%和74.8%,显示了很好的速效性和持效性。[结论]阿维菌素和噻虫胺混配是防治烟蚜、烟粉虱的较好药剂。[Methods] In order to investigate the toxicity and synergistic effect of avermectins and clothianidin to Myzus prsicae （Sulzer） and B biotype Bemisia tabaci, the topical application and tube residual film methods were used to test the toxicity. The avermectins-cIothianidin 18% SC was employed to test the filed effect. [Results] The results showed that the LC50 values of avermectins to M. prsicae （Sulzer） and B biotype B. tabaci were 1.014 and 0.317 mg/L, respectively, the LC50 values of clothianidin to M. prsicae and B biotype B. tabaci were 2.191 and 4.212 mg/L, respectively, the mixture of avermectins and clothianidin at the ratio of 1：8, 1：4 achieved additive effects with CTC 128.44 and 171.34 on M. prsicae and B biotype B. tabaci respectively. The control effects of abamectins-clothianidin 18% SC to M. prsicae were 90.6, 84.9 and 79.4% at dose of 150 mg/L 3, 7 and 14 days later, and the control effects at same dose to B biotype B. tabaci were 94.2, 90.6 and 74.8%, respectively. [Conclusions] The combination of avermectins and clothianidin can be used to control M. prsicae and B biotype B. tabaci on tobacco effectively.

关 键 词：烟蚜 B型烟粉虱 阿维菌素 噻虫胺 联合毒力 

分 类 号：S481.1[农业科学—农药学]