植物保护学报2025，Vol.52Issue(3)：527-538,12.DOI:10.13802/j.cnki.zwbhxb.2025.2025019
东北地区黏虫种群来源、为害特征及去向
Population origin,damage characteristics,and migration pathways of the oriental armyworm Mythimna separata in Northeast China
摘要
Abstract
The oriental armyworm,Mythimna separata,is a major migratory pest in Northeast China.Prior to 2012,outbreaks were mainly attributed to second-generation larvae.However,a large-scale a major third-generation outbreak in 2012 marked a shift in pest dynamics,with recurring outbreaks and increasing severity in the years that followed.This review proposes a migration-based hypothesis for M.separata in the region and summarizes the source populations,damage patterns,and potential migration destinations.M.separata cannot overwinter in Northeast China;spring populations originate from long-distance migration.First-generation moths arrive from eastern China between May and June and estab-lish populations in Northeast China,Japan,and Korea,giving rise to second-generation larvae that damage crops in June-July.The third generation emerges in July-August,originating from both local and incoming populations.Early instars feed primarily dense vegetation such as millet and grasses,while later instars move to crops like maize,causing significant damage.The return migration of second-and third-generation moths remains debated.Future research priorities include cross-border migration monitoring and mechanisms underlying return flights.关键词
黏虫/越冬/预测预报/防治策略/遗传基础Key words
oriental armyworm/overwintering/forecasting/control strategy/genetic basis引用本文复制引用
孙嵬,高月波..东北地区黏虫种群来源、为害特征及去向[J].植物保护学报,2025,52(3):527-538,12.基金项目
国家重点研发计划(2023YFD15011027),中国科学院战略性先导科技专项子课题(XDA28080204),国家公益性行业(农业)科研专项(201403031) （2023YFD15011027）
