Article (Scientific journals)
Biochemical and Morphological Mechanisms Underlying the Performance and Preference of Fall Armyworm (Spodoptera frugiperda) on Wheat and Faba Bean Plants
Liu, Huan; Cheng, Yumeng; Wang, Xiaoqing et al.
2022In Insects, 13 (4), p. 317
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Keywords :
Insect Science
Abstract :
[en] Spodoptera frugiperda (J. E. Smith), which attacked China in 2019, remains a significant threat to wheat production. Wheat–faba bean intercropping systems prevent damage caused by wheat aphids; however, the potential role in S. frugiperda control remains unclear. Here, the adaptability and preferences of S. frugiperda to wheat and its common intercropped plant, faba bean, were evaluated to implement an eco-friendly approach for S. frugiperda management. Their adaptability showed that both hosts could support S. frugiperda to complete their life cycle; however, the larvae performed worse on faba bean compared with on wheat. The biochemical analysis revealed that faba bean plants had lower contents of soluble sugars and total proteins but higher levels of phenolics and tannins than in wheat leaves. The gravid S. frugiperda preferred (during the preference assays) to oviposit on wheat rather than on faba bean plants in cage tests. The wheat odor was preferred over the faba bean odor in the Y-tube olfactometer bioassays. The morphological scanning electron microscopy (SEM) showed increased trichome density on wheat leaves. Therefore, the faba bean plants displayed antibiosis on larvae and were repellent to female moths, thus, suggesting that faba bean plants could serve as a push crop to be intercropped with wheat for S. frugiperda control for wheat fields.
Disciplines :
Entomology & pest control
Author, co-author :
Liu, Huan 
Cheng, Yumeng 
Wang, Xiaoqing
Francis, Frédéric  ;  Université de Liège - ULiège > GxABT : Services généraux du site > Site GxABT - Relations internationales
Wang, Qiang ;  Université de Liège - ULiège
Liu, Xiaobei
Zhang, Yong
Chen, Julian 
Language :
English
Title :
Biochemical and Morphological Mechanisms Underlying the Performance and Preference of Fall Armyworm (Spodoptera frugiperda) on Wheat and Faba Bean Plants
Publication date :
23 March 2022
Journal title :
Insects
eISSN :
2075-4450
Publisher :
MDPI AG
Volume :
13
Issue :
4
Pages :
317
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
the Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences
Available on ORBi :
since 25 March 2022

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