Spread of invasive migratory pest Spodoptera frugiperda and management practices throughout China

doi:10.1016/S2095-3119(21)63621-3

摘要/Abstract

摘要：

草地贪夜蛾于2018年12月入侵中国，2019和2020年分别在中国26和27个省（自治区、直辖市）发生112.5万公顷和127.8万公顷。玉米是受害最严重的作物，同时麦类等20余种其它农作物也受到危害。在研究明确草地贪夜蛾生物学习性、发生规律和危害特性的基础上，中国政府将草地贪夜蛾发生区域划分为西南华南周年繁殖区、江南江淮迁飞过渡区和黄淮海及北方重点防范区，实施分区治理策略；全国农技推广中心构建的全国草地贪夜蛾监测预警技术平台，可实时掌握县域水平的害虫发生信息；根据测报信息，基层政府组织植保队伍和农民采取化学防治、理化诱控和生物生态控制等措施及时开展防治工作。通过联防联控的组织模式，草地贪夜蛾的发生危害得到了有效控制，2019-2020年全国草地贪夜蛾发生区的总体产量损失低于5%，保障了玉米等作物的安全生产。本文也讨论了现阶段存在的问题及未来发展方向。

Abstract:

The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), a notorious migratory pest native to tropical and subtropical America, invaded China in December 2018, then spread through 26 provinces (autonomous regions, municipalities) in 2019 and 27 in 2020, damaging 1.125 and 1.278 million hectares of crops, respectively. Maize was the most severely affected crop, although wheat and other plants were also ruined. Considering the biological characteristics, incidence regularity and migration patterns of the FAW populations, Chinese government implemented a regional control strategy and divided the areas infested with FAW into the annual breeding grounds in Southwest and South China, the transitional migration area in Jiangnan and Jianghuai and the key preventive area in the Huang-Huai-Hai region and North China. The National Agro-Tech Extension and Service Center constructed “the National Information Platform for the Prevention and Control of the Fall Armyworm” at the county level, which would entail people reporting and mapping the spread of fall armyworm. According to forecasting information, millions of extension workers and small-scale growers in entire country were rallied by local governments to fight the pest through comprehensive control tactics including chemical, physical, biological and ecological measures. Thanks to the joint prevention and control, the final loss of crops infested was controlled within 5% of the total in 2019 and 2020. This review also gives a discussion on existing problems and future management scenarios.

Key words: Spodoptera frugiperda , genetic characteristics , occurrence and damage , monitoring and early-warning , control measures

. [J]. Journal of Integrative Agriculture, 2021, 20(3): 637-645.

ZHOU Yan, WU Qiu-lin, ZHANG Hao-wen, WU Kong-ming. Spread of invasive migratory pest Spodoptera frugiperda and management practices throughout China[J]. Journal of Integrative Agriculture, 2021, 20(3): 637-645.

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