Chlorantraniliprole susceptibility in leptinotarsa decemlineata in the north Xinjiang Uygur autonomous region in China
文献类型: 外文期刊
作者: Jiang, Wei-Hua 1 ; Lu, Wei-Ping 1 ; Guo, Wen-Chao 2 ; Xia, Zhen-Han 3 ; Fu, Wen-Jun 3 ; Li, Guo-Qing 1 ;
作者机构: 1.Nanjing Agr Univ, Coll Plant Protect, Educ Minist Key Lab Integrated Management Crop Di, Nanjing 210095, Jiangsu, Peoples R China
2.Xinjiang Acad Agr Sci, Dept Plant Protect, Urumqi 830091, Peoples R China
3.Stn Agr Tech Extens Yili, Xinjiang 835000, Ili, Peoples R China
关键词: chlorantraniliprole;Leptinotarsa decemlineata;synergist;toxicity
期刊名称:JOURNAL OF ECONOMIC ENTOMOLOGY ( 影响因子:2.381; 五年影响因子:2.568 )
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收录情况: SCI
摘要: The Colorado potato beetle (Leptinotarsa decemlineata (Say)) in the north Xinjiang Uygur autonomous region has evolved resistance to various types of insecticides. Chlorantraniliprole is a novel anthranilic diamide insecticide that binds and activates ryanodine receptors. It exhibited excellent efficacy against L. decemlineata in several field trails in Europe. In the present paper, the susceptibility of L. decemlineata fourth-instar larvae derived from six field populations and L. decemlineata adults derived from three field populations to chlorantraniliprole was determined by a topical application. The fourth-instar larvae were substantially more susceptible to chlorantraniliprole than adults, although the range of susceptibility was far greater among the fourth-instar larvae. Regarding stomach toxicities, adult beetles were less susceptible to chlorantraniliprole than larvae. Chlorantraniliprole was most toxic to second-instar larvae, followed by third-and fourth-instar larvae. These data suggested that the appropriate timing for chlorantraniliprole spraying is the early larval stage. More-over, the synergistic activities of chlorantraniliprole in combination with triphenyl phosphate, diethyl maleate, or piperonyl butoxide against fourth-instar larvae from two field populations and adults from one field population were tested. Piperonyl butoxide had synergistic effects with chlorantraniliprole against fourth-instar larvae but not against adult beetles. Conversely, triphenyl phosphate and diethyl maleate exerted little synergistic effects. It appears that there is a potential risk of resistance against chlorantraniliprole resulting from cytochrome P450 monooxygenase activity.
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