Monitoring of Bactrocera dorsalis (Diptera: Tephritidae) Resistance to Cyantraniliprole in the South of China
文献类型: 外文期刊
第一作者: Zhang, Ruimin
作者: Zhang, Ruimin;Chen, Jiahua;He, Shiyu
作者机构:
关键词: Bactrocera dorsalis;cyantraniliprole;insecticide resistance;field-collected population;synergism effect
期刊名称:JOURNAL OF ECONOMIC ENTOMOLOGY ( 影响因子:2.381; 五年影响因子:2.568 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The oriental fruit fly, Bactrocera dorsalis (Hendel), is a globally important economic insect pest that has evolved resistance to various types of insecticides. Cyantraniliprole (DuPont Cyazypyr) is a new anthranilic diamide insecticide registered to control lepidopteran and sucking insects. The susceptibility of field-collected populations of B. dorsalis to cyantraniliprole was assessed via a diet incorporation bioassay in adults. Based on the obtained LC_(50) values (ranging from 3.29 to 15.83 μg/g), all the testing populations, including ZZ (Fujian province), HH (Yunnan province), JM (Guangdong province), SY (Hainan province), HZ (Zhejiang province), YL (Guangxi province), SH (Shanghai), WH (Hubei province), and CS (Hunan province), were susceptible to cyantraniliprole, with the samples of WH (Hubei province) being the most tolerant (by 4.80-fold). Two (SY, Hainan province; CS, Hunan province) of the nine field-collected populations of B. dorsalis showed a similar susceptibility to cyantraniliprole, while the remaining populations displayed narrow variations in tolerance compared with the laboratory strain. Synergist assays were performed to determine the potential detoxification mechanisms. Piperonyl butoxide showed significant synergism effects in lab, CS, and resistant strain. S,S,S-tributylphorotrithioate and diethyl maleate also showed obvious synergism effects in resistant strain. A 19.44-fold increase in resistance to cyantraniliprole was observed after 14 generations of selection in the laboratory. The present work clarifies the baseline susceptibility and primary mechanisms of B. dorsalis to cyantraniliprole in the south China and established a cyantraniliprole-resistant strain as well. A sound resistance management strategy is also discussed in relation to the risk of susceptibility.
分类号: Q969.9
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