关键词: 草地贪夜蛾, 生物学, 扩散规律, 迁飞路线, 生物防治, 化学防治

Abstract: The fall armyworm, Spodopterar frugiperda, has posed a great threat on food security of China since its invasion into China in December 2018. To effectively control this pest insect, the entomologists in China worked hard in last year, made many important progresses in studies concerning its taxonomy and biotype identification, investigation of its host crops, cold-hardiness and diffusion law, prediction of its potential geographical distribution and migration routes, its biological and chemical control, etc., and published more than 250 related papers. The results revealed that the fall armyworm invaded in China is mainly the corn strain and has caused harm to 15 crops. It has two migration routes, namely the east route and the west route, and can occur in all provinces of China. A total of 31 natural enemies of the fall armyworm were identified, and a batch of insecticides with good control efficacy against this pest was screened out. In this article, we summarized these works and put forward some suggestions on future research topics including enhancing the study on intelligent identification and automatic forecasting of the fall armyworm, accelerating the industrialization of dominant natural enemies and Bt corn, enhancing the monitoring of insecticide resistance and frequencies of insecticide resistance related genes, developing highly effective sex attractants and food attractants, and deepening the studies on the regulation mechanisms of important life processes and the molecular mechanisms of resistance to chemical insecticides and different Bt proteins, so as to provide the necessary theoretical basis and technical support for the sustainable management of the fall armyworm.
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Key words: Spodoptera frugiperda, biology, diffusion law, migration routes, biological control, chemical control