Management strategy for Spodoptera frugiperda (Lepidoptera:Noctuidae) in mountain maize planting areas in China

• Published in: Journal of Asia-Pacific entomology 2023, 26(4), , pp.1-10
• Main Authors: Yao, Yao, He, Yanyan, Zhang, Lilan, Wang, Kun, Li, Bin, Du, Guangzu, Zhu, Chunyue, Yi, Xiaocui, Liu, Yiyi, Zi, Shengjiang, Chen, Bin, Xiao, Guanli
• Format: Article
• Language: English
• Subjects: Biological control; Chemical insecticide; Maize variety; Optimal management; Seed coating; 농학
• ISSN: 1226-8615; 1876-7990
• DOI: 10.1016/j.aspen.2023.102152

[Display omitted] •The study screened the Spodoptera frugiperda-resistant maize variety, seed coating agents, chemical pesticides, and biological agents in China.•The study recommended four effective pest management strategies for S. frugiperda in mountain maize planting fields.•This study can provide effective control strategies for S. frugiperda. The fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), is a major maize pest worldwide and has caused huge economic loss. To explore the control tactics of S. frugiperda in mountain maize planting fields, studies were performed in China from 2020 to 2021 for screening the S. frugiperda-resistant maize variety, seed coating agents, chemical insecticides, and biological agents. The results showed that 75 g/hm2 Emamectin benzoate had better controlling efficacy (with a control efficacy of 91.05% at 1d) than other chemicals, so it was recommended in the high incidence period of pests. Compared with other seed coating treatments, 50% Lumingwei TM625FS (with a control efficacy of 76.19% at 10d) was the best seed coating against S. frugiperda. The biological control “Telenomus remus + Picromerus lewisi” and “T. remus + Eocanthecona furcellata” had good control efficacy on S. frugiperda with 76.01%, 64.10% at 20d, respectively. Additionally, there were lower numbers of S. frugiperda in maize variety GuiDan6, BaoYu9, and YanBaiYu8. In summary, this research recommended four effective pest management strategies (GuiDan6-resistant maize variety, 50% Lumingwei TM625FS-seed coating agents, 5% emamectin benzoate-chemical pesticide, and “T. remus + P. lewisi”-biological control) in mountain maize planting fields. The study provided effective control strategies for S. frugiperda.