Investigation and monitoring of overwintering and migrant populations, and the larval occurrence of the oriental armyworm,Mythimna separata (Walker)
Author of the article:JIANG Xing-Fu1** JIANG Yu-Ying2 ZHANG Lei1 CHENG Yun-Xia1 LUO Li-Zhi1
Author's Workplace：1. State Key Laboratory for Biology of Plant Diseases and Insect Pest, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193; 2. National Agro-Technical Extension and Service Center, Beijing 100125, China
Key Words： Mythimna separata, overwintering investigation, monitoring of the migrant population, larval occurrence investigation
Abstract：The oriental armyworm, Mythimna separata (Walker) is a major agricultural and typical seasonal, long-distance, migratory, multigenerational, insect pest of food crops with a broad distribution and a long history of causing severe crop losses inChina. This pest occurs annually in 5 different regions from the south to the north of easternChina. It can overwinter in southChinaand damage crops in different regions through seasonal, long-distance and multigenerational roundtrip migrations. Monitoring the overwintering and migratory population dynamics and investigating larval occurrence in the field is essential for the effective management or this pest. Based on the species’ biology and occurrence characteristics in different regions, we developed methods and technologies for the investigation and monitoring of overwintering and migrant populations and larval occurrence, which can provide theoretical support for the species’ integrated management.