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The Toxicity and Detoxifying Mechanism of Cycloxaprid and Buprofezin in Controlling Sogatella furcifera (Homoptera: Delphacidae)

文献类型： 外文期刊

作者： Chang, Xiaoli 1 ; Yuan, Yongda 1 ; Zhang, Tianshu 1 ; Wang, Dongsheng 1 ; Du, Xingbin 1 ; Wu, Xiangwen 2 ; Chen, Haixi 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Ecol & Environm Protect, Shanghai 201403, Peoples R China

2.Shanghai Agr Technol Extens & Serv Ctr, Dept Plant Protect, Shanghai 201103, Peoples R China

关键词： cycloxaprid;buprofezin;Sogatella furcifera;insecticidal activity;detoxifying enzyme

期刊名称：JOURNAL OF INSECT SCIENCE （ 影响因子：1.857； 五年影响因子：1.904 ）

ISSN： 1536-2442

年卷期： 2015 年 15 卷

页码：

收录情况： SCI

摘要： The effects of cycloxaprid (a modified neonicotinoid insecticide) and buprofezin (a thiadiazine insecticide) on mortality of the white-backed planthopper (WBPH), Sogatella furcifera, were determined in laboratory assays. Cycloxaprid killed WBPH nymphs and adults but buprofezin killed only nymphs, and cycloxaprid acted faster than buprofezin. One day after infestation, mortality of third-instar nymphs was >65% with cycloxaprid at 125 mg liter(-1) but was <38% with buprofezin at 148 mg liter(-1). By the 4th day after infestation, however, control of nymphs by the two insecticides was similar, and cycloxaprid at 125 mg liter(-1) caused >= 80% mortality of adults but buprofezin at 148 mg liter(-1) (the highest rate tested) caused almost no adult mortality. LC50 values for cycloxaprid were lowest with nymphs, intermediate with adult males, and highest with adult females. Although buprofezin was slower acting than cycloxaprid, its LC50 for nymphs 5 d after infestation was 3.79-fold lower than that of cycloxaprid. Mean carboxylesterase (CarE) specific activity of nymphal WBPH treated with cycloxaprid and buprofezin was higher than that of control, but there was no significant difference between cycloxaprid and control (no insecticide), and it was significantly higher for buprofezin than those of cycloxaprid and control. For glutathione S-transferase and mixed function oxygenase, the specific activity of nymphal WBPH treated with buprofezin was significantly higher than those of cycloxaprid and control, too.

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