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The effect of oviposition experience of adult Microplitis pallidipes parasitoids on discrimination between nucleopolyhedrovirus-infected and healthy Spodoptera litura larvae

文献类型： 外文期刊

作者： Jiang, Jie-Xian 1 ; Ji, Xiang-Yun 1 ; Bao, Yang-Bing 1 ; Wan, Nian-Feng 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Shanghai Key Lab Protected Hort Technol, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China

关键词： Host discrimination;Virus-infected larvae;Oviposition experience;Microplitis pallidipes Szepligeti;Nucleopolyhedrovirus;Spodoptera litura Fabricius

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

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收录情况： SCI

摘要： Using multiple pest-mortality sources is a basic tenet of IPM, but they may not always be compatible. To that end, we examined compatibility of parasitism and nucleopolyhedrovirus (NPV) infected. Specifically, we examined the effects of prior oviposition experience by Microplitis pallidipes on its ability to distinguish NPV-infected from healthy larvae of Spodoptera litura. We found that time spent searching for hosts was significantly lower, while the number of attacks, percentage of first attacks,and parasitism rate were all significantly higher in healthy versus virus-infected hosts for parasitoids that had experienced healthy hosts. Meanwhile, parasitoids that had experienced infected hosts spent significantly more time searching for infected hosts starting on day 2. For these parasitoids, the number of attacks, percentage of first attacks, and parasitism rate were all significantly lower from day 2 in virus-infected versus healthy larvae. We found no significant differences between parasitoids without experience versus ones experienced with infected hosts in search time for infected hosts, number of infected host attacks, or percentage of first attacks on infected hosts. In comparison, parasitoids that had experienced healthy hosts spent less time searching for healthy hosts than parasitoids without experience, and displayed a higher frequency of attack on healthy hosts and a higher percentage of first attacks on healthy hosts. Experience with healthy larvae aided parasitoids in distinguishing healthy from virus-infected larvae, but experience with virus-infected larvae did not convey the same discrimination. This information provides a better understanding of how to integrate NPV applications with naturally occurring parasitism for this pest in crops.

  • 相关文献

[1]Effect of nucleopolyhedrovirus infection of Spodoptera litura larvae on host discrimination by Microplitis pallidipes. Jiang, Jie-Xian,Bao, Yang-Bing,Ji, Xiang-Yun,Wan, Nian-Feng. 2014

[2]Experimental temperature elevation promotes the cooperative ability of two natural enemies in the control of insect herbivores. Jiang, Jie-Xian,Yang, Jun-Hua,Ji, Xiang-Yun,Zhang, Hao,Wan, Nian-Feng,Wan, Nian-Feng. 2018

[3]The effect of nucleopolyhedrovirus infection and/or parasitism by Microplitis pallidipes on hemolymph proteins, sugars, and lipids in Spodoptera exigua larvae. Jiang, Jie-Xian,Ji, Xiang-Yun,Yin, Yang-Yi,Wan, Nian-Feng.

[4]Nucleopolyhedrovirus infection and/or parasitism by Microplitis pallidipes Szepligeti affect hemocyte apoptosis of Spodoptera exigua (Hubner) larvae. Wan, Nian-Feng,Ji, Xiang-Yun,Zhang, Hao,Yang, Jun-Hua,Jiang, Jie-Xian.

[5]Nucleopolyhedrovirus infection and/or parasitism by Microplitis pallidipes affected haemolymph titre of 20-hydroxyecdysone in Spodoptera exigua larvae. Ji, X. -Y.,Wan, N. -F.,Liu, J.,Jiang, J. -X..

[6]Combined effect of nucleopolyhedrovirus and Microplitis pallidipes for the control of the beet armyworm, Spodoptera exigua. Jiang, Jiexian,Ji, Xiangyun,Wan, Nianfeng,Chen, Xiaoqin,Zeng, Aiping.

[7]Effect of host plants on the infectivity of nucleopolyhedrovirus to Spodoptera exigua larvae. Wan, N. -F.,Li, B.,Wan, N. -F.,Jiang, J. -X..

[8]The impact of co-infection by a nucleopolyhedrovirus and the endoparasitoid Microplitis pallidipes on the total hemocyte count and composition in larval beet armyworm, Spodoptera exigua. Wan, Nian-Feng,Ji, Xiang-Yun,Yin, Yang-Yi,Jiang, Jie-Xian.

[9]The impact of co-infection by a nucleopolyhedrovirus and the endoparasitoid Microplitis pallidipes Szepligeti on the protective enzymes in hemolymph of Spodoptera exigua. Wan, Nian-Feng,Ji, Xiang-Yun,Yin, Yang-Yi,Zhang, Hao,Jiang, Jie-Xian.

[10]Prophenoloxidase encoding genes in Spodoptera exigua: molecular cloning and immune response to the challenge of nucleopolyhedrovirus and/or Microplitis pallidipes. Zhang, Hao,Ji, Xiang-Yun,Wan, Nian-Feng,Jiang, Jie-Xian.

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