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Efficiency of the mixed biocide GCSC-BtA against vegetable pests of different arthropod orders in the south-eastern China

文献类型： 外文期刊

作者： Sengonca, C 1 ; Liu, B 2 ; Zhu, YJ 2 ;

作者机构： 1.Univ Bonn, Inst Phytopathol, Dept Entomol & Plant Protect, D-53115 Bonn, Germany

2.Univ Bonn, Inst Phytopathol, Dept Entomol & Plant Protect, D-53115 Bonn, Germany; Fujian Acad Agr Sci, Ctr Biotechnol, Fuzhou 350003, Peoples R China

关键词： GCSC-BtA;vegetable;pests;arthropod;China

期刊名称：ANZEIGER FUR SCHADLINGSKUNDE-JOURNAL OF PEST SCIENCE （ 影响因子：0.303； ）

ISSN：

年卷期：

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收录情况： SCI

摘要： The present paper deals with the efficiency of the mixed biocide GCSC-BtA against vegetable pests of five orders of arthropod insects in the south-eastern China, i.e., diamondback moth, Plutella xylostella (L.); green peach aphid, Myzus persicae (Sulzer); yellow-fanded flea beetle, Phyllotreta vittata Fabricius; vegetable leaf miner, Phytomyza nigricornis Macquart; and vegetable spider mite, Tetranychus neocaledonicus Andre. The results show that the mixed biocide GCSC-BtA has a higher efficacy ofcontrol against all of the five pests than the commercial biocide B.t. and insecticide Diazinon. GCSC-BtA gave a higher mortality value of 92.18 percent against P. xylostella as compared to the biocide B.t. with a value of 64.70 percent and Diazinon witha value of 50.00 percent. Similar mortalities were obtained with the other four pests regarding the efficacy of the three products tested against them. The concentration-mortality regression equations were calculated by the probit analysis, from which the average mortalities were calculated. The values calculated for GCSC-BtA were 81.13 percent for P. xylostella, 75 percent for M. persicae and T. neocaledonicus, 69.23 percent for P. vittata, and 61.03 percent for P. nigricornis as compared to those caused by Diazinon: 33.33 percent, 27.42 percent, 66.31 percent, 44.54 percent, 19.65 percent for P. xylostella, M. persicae, P. vittata, P. nigricornis, and T. neocaledonicus, respectively. Based on LC_(50), P. xylostella was most susceptible to GCSC-BtA with a LC_(50) value of 0.3445, followed by B.t. with a value of 0.8404 and Diazinon with a value of 1.3160. The LC_(50) value of GCSC-BtA for M. persicae was 0.4660 which was about three times less than that of Diazinon. LC_(50) value of GCSC-BtA for P.vittata was 0.3954 which was about the same as that of Diazinon. P. nigricornis and T. neocaledonicus were also much more susceptible to GCSC-BtA than to B.t. and Diazinon. It is concluded that GCSC-BtA kills more target pests than B.t. and is more effective than Diazinon in controlling the vegetable pests.

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