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The green lacewing Chrysopa formosa as a potential biocontrol agent for managing Spodoptera frugiperda and Spodoptera litura

Published online by Cambridge University Press:  29 July 2022

Yu-Yan Li Open the ORCID record for Yu-Yan Li [Opens in a new window] ,
Ya-Nan Wang Open the ORCID record for Ya-Nan Wang [Opens in a new window] ,
Hong-Zhi Zhang Open the ORCID record for Hong-Zhi Zhang [Opens in a new window] ,
Mao-Sen Zhang Open the ORCID record for Mao-Sen Zhang [Opens in a new window] ,
Meng-Qing Wang ,
Jian-Jun Mao  and
Li-Sheng Zhang
Yu-Yan Li*
Affiliation:
Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
Ya-Nan Wang
Affiliation:
Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
Hong-Zhi Zhang
Affiliation:
Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
Mao-Sen Zhang
Affiliation:
Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
Meng-Qing Wang
Affiliation:
Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
Jian-Jun Mao
Affiliation:
Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
Li-Sheng Zhang*
Affiliation:
Key Laboratory of Natural Enemy Insects, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
*
Authors for correspondence: Yu-Yan Li, Email: liyuyan@caas.cn; Li-Sheng Zhang, Email: zhanglisheng@caas.cn
Authors for correspondence: Yu-Yan Li, Email: liyuyan@caas.cn; Li-Sheng Zhang, Email: zhanglisheng@caas.cn
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Abstract

Understanding predator–prey interactions is essential for successful pest management by using predators, especially for the suppression of novel invasive pest. The green lacewing Chrysopa formosa is a promising polyphagous predator that is widely used in the biocontrol of various pests in China, but information on the control efficiency of this predator against the seriously invasive pest Spodoptera frugiperda and native Spodoptera litura is limited. Here we evaluated the predation efficiency of C. formosa adults on eggs and first- to third-instar larvae of S. frugiperda and S. litura through functional response experiments and determined the consumption capacity and prey preference of this chrysopid. Adults of C. formosa had a high consumption of eggs and earlier instar larvae of both prey species, and displayed a type II functional response on all prey stages. Attack rates of the chrysopid on different prey stages were statistically similar, but the handling time increased notably as the prey developed. The highest predation efficiency and shortest-handling time were observed for C. formosa feeding on Spodoptera eggs, followed by the first-instar larvae. C. formosa exhibited a significant preference for S. litura over S. frugiperda in a two-prey system. In addition, we summarized the functional response and predation efficiency of several chrysopids against noctuid pests and made a comparison with the results obtained from C. formosa. These results indicate that C. formosa has potential as an agent for biological control of noctuid pests, particularly for the newly invasive pest S. frugiperda in China.

Keywords

Chrysopa formosafunctional responsepredation efficiencyprey preferenceSpodoptera
Type
Research Paper
Information
Bulletin of Entomological Research , Volume 113 , Issue 1 , February 2023 , pp. 49 - 62
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Copyright © The Author(s), 2022. Published by Cambridge University Press

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