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Chlorfenapyr, a Potent Alternative Insecticide of Phoxim To Control Bradysia odoriphaga (Diptera: Sciaridae)

文献类型: 外文期刊

作者: Zhao, Yunhe 1 ; Wang, Qiuhong 1 ; Wang, Yao 1 ; Zhang, Zhengqun 2 ; Wei, Yan 1 ; Liu, Feng 1 ; Zhou, Chenggang 3 ; Mu, We 1 ;

作者机构: 1.Shandong Agr Univ, Shandong Prov Key Lab Biol Vegetable Dis & Insect, Coll Plant Protect, Tai An 271018, Shandong, Peoples R China

2.Shandong Agr Univ, Coll Hort Sci & Engn, Tai An 271018, Shandong, Peoples R China

3.Shandong Agr Univ, Coll Plant Protect, Tai An 271018, Shandong, Peoples R China

4.Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Shandong, P

关键词: chlorfenapyr;Bradysia odoriphaga;insecticide resistance;insecticide residue

期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )

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收录情况: SCI

摘要: Bradysia odoriphaga is the major pest affecting Chinese chive production, and in China, it has developed-widespread resistance to organophosphorus insecticides. Chlorfenapyr is a promising pyrrole insecticide with a unique mechanism of action that does not confer cross-resistance to neurotoxic insecticides. However, the effect of chlorfenapyr on organophosphate-resistant B. odoriphaga is not well understood. The present study evaluated the potential of chlorfenapyr for the control of phoxim-resistant B. odoriphaga. The results showed that chlorfenapyr had significant insecticidal activity to B. odoriphaga in multiple developmental stages, and there were no significant differences in susceptibility between the field (phoxim-resistant) and laboratory (phoxim-susceptible) populations. The pot experiment and field trials confirmed the results of our laboratory bioassays. In the field trial, chlorfenapyr applied at 3.0, 6.0, or 12.0 kg of active ingredient (a.i.)/ha significantly decreased the number of B. odoriphaga and improved the yield compared to phoxim at 6.0 kg of a.i./ha and the control conditions. Moreover, the final residues of chlorfenapyr on plants were below the maximum residue limits (MRLs) as a result of its non-systemic activity. These results demonstrate that chlorfenapyr has potential as a potent alternative to phoxim. for controlling B. odoriphaga.

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[1]Synergistic effect of entomopathogenic nematodes and thiamethoxam in controlling Bradysia odoriphaga Yang and Zhang (Diptera: Sciaridae). Wu, Haibin,Xu, Yongyu,Wu, Haibin,Gong, Qingtao,Fan, Kun,Sun, Ruihong,Zhang, Kunpeng.

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