Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (19): 128-132.doi: 10.11924/j.issn.1000-6850.casb2020-0475

Special Issue: 生物技术 植物保护 水产渔业

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Repellent Effect of Rhizobium on Spodoptera frugiperda

REN Xuexiang1(), JING Maofeng2, SU Xianyan1, CHI Yu1, CHEN Haoliang1, ZHONG Yongzhi1, YE Zhenghe1()   

  1. 1Institute of Plant Protection and Agro-products Safety, Anhui Academy of Agricultural Sciences, Hefei 230031
    2College of Plant Protection, Nanjing Agricultural University, Nanjing 210095
  • Received:2020-09-18 Revised:2022-04-24 Online:2022-07-05 Published:2022-07-13
  • Contact: YE Zhenghe E-mail:rxxiang1@sina.com;yezbs@tom.com

Abstract:

The purpose of this study is to determine whether rhizobia remaining in the soil of soybean have repellent effect on Spodoptera frugiperda. Maize and wheat were coated with rhizobia, the differences of leaf feeding amount of S. frugiperda in different treatments were determined, and the influence of rhizobia on S. frugiperda was clarified. It was found that the leaf feeding amount of S. frugiperda on maize and wheat seeds after rhizobia treatment were significantly less than that of control treatment. When maize leaves were placed for 6, 22 and 27 h, the maize leaf weight of rhizobia treatment was decreased by 0.1167, 0.2622 and 0.3733 g respectively, and leaf weight of the blank treatment was decreased by 0.1744, 0.4211 and 0.5744 g respectively. When wheat leaves were placed for 22 h, the wheat leaf weight of rhizobia treatment was decreased by 0.3102 g, and that of the blank treatment was decreased by 0.3503 g. In conclusion, rhizobia have a repellent effect on S. frugiperda.

Key words: Spodoptera frugiperda, rhizobium, repellent effect, feeding amount, seed dressing

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