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Insecticidal activity and antifeedant effect of a new type biocide GCSC-BtA against Plutella xylostella L. (Lep., Plutellidae)

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, Fujian, Peoples R China

关键词： GCSC-BtA;Bacillus thuringiensis;Abamectin;insecticidal activity;antifeedant

期刊名称：JOURNAL OF PEST SCIENCE （ 影响因子：5.918； 五年影响因子：5.955 ）

ISSN： 1612-4758

年卷期： 2006 年 79 卷 1 期

页码：

收录情况： SCI

摘要： Insecticidal activity and antifeedant effect of a new type biocide GCSC-BtA and its two reactants Bacillus thuringiensis (B.t.) crystal and Abamectin against third instar larvae of Plutella xylostella L. (Lep., Plutellidae) were investigated using bioassays. GCSC-BtA showed significantly higher toxicity to P. xylostella with LC50 of 0.021 mg/ml than B.t. crystal with 0.060 mg/ml and Abamectin with 0.139 mg/ml in leaf-dip bioassay. Net leaf-dip test gave LC(50)s of 0.073, 0.071 and 0.670 mg/ml for GCSC-BtA, B.t. crystal and Abamectin, respectively. The significant differences of the biocide toxicities between leaf-dip and net leaf-dip methods showed the potential of net leaf-dip method for separating ingestion and contact poisons. Variation in toxicity of the biocide and two reactants in net leaf-dip method and in mortality in topical application bioassay showed that GCSC-BtA possessed a combination of strong stomach as well as contact poison property higher than B.t. or Abamectin. GCSC-BtA indicated no fumigant and systemic toxicities, which the two reactants lacked. In the antifeedant bioassay, GCSC-BtA acted as a strong antifeedant to the larvae of P. xylostella. Leaf consumption by the larvae after GCSC-BtA treatment was 0.04-0.60 mm(2) with a concentration range of 0.04-4.00 mg/ml, which was lower than 0.26-1.02 and 0.04-6.47 mm(2) for B.t. crystal and Abamectin, respectively. DC50 (concentration resulting in a deterrence index of 50%) value for GCSC-BtA was 0.089 mg/ml, which was also significantly lower than 0.275 and 0.736 mg/ml for B.t. crystal and Abamectin, respectively.

  • 相关文献

[1]Laboratory studies on the effect of the bioinsecticide GCSC-BtA on mortality and feeding of diamondback moth Plutella xylostella L. (Lepidoptera : Plutellidae) larvae on cabbage. Liu, B.,Zhu, Y. J.,Sengonca, C.. 2006

[2]Effect of GCSC-BtA biocide on abundance and diversity of some cabbage pests as well as their natural enemies in southeastern China. Sengonca, C,Liu, B.

[3]Characterization of a new cry2Ab gene of Bacillus thuringiensis with high insecticidal activity against Plutella xylostella L.. Pan, Zhizhen,Zhu, Yujing,Shi, Huai,Chen, Zheng,Chen, Meichun,Liu, Bo,Xu, Lian,Chen, Qingxi.

[4]Proteolytic Activation of Bacillus thuringiensis Cry2Ab through a Belt-and-Braces Approach. Xu, Lian,Zhang, Jing,Chen, Qing-Xi,Pan, Zhi-Zhen,Liu, Bo,Zhu, Yu-Jing.

[5]Efficiency of the mixed biocide GCSC-BtA against vegetable pests of different arthropod orders in the south-eastern China. Sengonca, C,Liu, B,Zhu, YJ.

[6]Toxicity of biocide GCSC-BtA on arthropod pests under different temperature conditions. Zhu, YJ,Sengonca, C,Liu, B.

[7]Screening of Vip3Aa60 and Vip3Ad5 and characterization of their binding to Spodoptera exigua midguts. Pan, Zhi-Zhen,Guan, Xiong,Xu, Lian,Zhang, Jing,Chen, Qing-Xi,Gao, Huan-Juan,Pan, Zhi-Zhen,Liu, Bo,Chen, Zheng,Zhu, Yu-Jing. 2017

[8]Effect of chemical additives on Bacillus thuringiensis (Bacillales: Bacillaceae) against Plutella xylostella (Lepidoptera: Pyralidae). Zhang, L.,Huang, T.,Huang, Z.,Xu, L.,Wu, C.,Guan, X.,Qiu, S.,Gelbic, I..

[9]PxAPN5 serves as a functional receptor of Cry2Ab in Plutella xylostella (L.) and its binding domain analysis. Pan, Zhi-Zhen,Liu, Bo,Chen, Zheng,Zhu, Yu-Jing,Xu, Lian,Zhang, Jing,Chen, Qing-Xi.

[10]Proteolytic activation of Bacillus thuringiensis Vip3Aa protein by Spodoptera exigua midgut protease. Zhang, Ling,Xu, Lian,Li, Jie,Niu, Li -Yang,Chen, Qing-Xi,Pan, Zhi-Zhen,Liu, Bo,Chen, Zheng,Zhu, Yu-Jing. 2018

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