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Effects and correlation analysis of different host-plant components on physiological indexes in Spodoptera frugiperda
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  • Min Fang,
  • Sihan Lu,
  • Ling Yao,
  • Renwen Zheng,
  • Jianhua Huang,
  • Guiting Li,
  • Qingfeng Tang
Min Fang
Anhui Agricultural University
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Sihan Lu
Anhui Agricultural University
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Ling Yao
Anhui Agricultural University
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Renwen Zheng
Anhui Agricultural University
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Jianhua Huang
Zhejiang University - Zijingang Campus
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Guiting Li
Anhui Agricultural University
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Qingfeng Tang
Anhui Agricultural University
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Abstract

Spodoptera frugiperda (Lepidoptera: Noctuidae) is an invasive pest that ravaging crops in many provinces of China. In order to specifically control this invasive pest, understanding of the relationship between the insect and the host is necessary. In this study, we have compared the biological and nutritional indexes of S. frugiperda by feeding it with five different host-plants (Zea mays, Triticum aestivum, Digitaria sanguinalis, Glycine max and Eleusine indica). The biological and nutritional indexes of Z. mays feeding S. frugiperda were the best. However, the pupa weight and fecundity of S. frugiperda fed with G. max and E. indica were significantly lower than those fed with other hosts, efficiency of conversion of digested food (ECD) and efficiency of conversion of ingested food (ECI) were also lower than others. The total phenol content was negatively correlated with the biological and nutritional indexes of S. frugiperda, while the C/N content was positively correlated. When fed on different host plants, the biological and nutritional indexes of S. frugiperda were different, but all of them could complete the life cycle. Therefore, in the absence of Z. mays, the S. frugiperda may also harm other host plants, and host plants with high C/N content can also with the risk of being infected.

Peer review status:UNDER REVIEW

14 Apr 2021Submitted to Ecology and Evolution
23 May 2021Assigned to Editor
23 May 2021Submission Checks Completed
07 Jul 2021Reviewer(s) Assigned
14 Oct 2021Review(s) Completed, Editorial Evaluation Pending