Current status of insecticide resistance in Spodoptera frugiperda and counter measures to prevent its development
Author of the article:WU Yi-Dong;SHEN Hui-Wen;ZHANG Zheng;WANG Xing-Liang;SHI Yu;WU Shu-Wen;YANG Yi-Hua
Author's Workplace:College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China;College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China;College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China;College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China;College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China;College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China;College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
Key Words:Spodoptera frugiperda; insecticide resistance; resistance mechanism; resistance management
Abstract:Spodoptera frugiperda (J.E. Smith) is native to tropical and subtropical regions of the
Americas but is now a major global agricultural pest. S. frugiperda larvae attack a wide range of crops including maize,
sorghum, peanut and soybean. This pest has four characteristics that exacerbate
its pest status: polyphagy, high fecundity, strong migratory ability and the
ability to develop resistance to insecticides. Since it invaded Yunnan province
in January 2019, S. frugiperda is spreading rapidly through a dozen
other Chinese provinces. Currently, control of S. frugiperda in China mainly relies on spraying chemical
insecticides. However, some of the first S.
frugiperda to invade China already carried genes conferring resistance to
organophosphorus and carbamate insecticides. There is an urgent need to
determine the resistance status of S.
frugiperda in China so that the insecticides that are most effective
against this pest can be identified and deployed. This paper reviews the
monitoring methods and current status of S.
frugiperda, and the mechanisms responsible for insecticide resistance in
this species. Methods for monitoring and managing resistance in S. frugiperda in China are suggested.