摘要
草地贪夜蛾Spodoptera frugiperda是目前世界上最重要的农业害虫之一,也是危害十分严重的入侵害虫.本研究调查了贵州省锦屏县东南部坝区草地贪夜蛾的发生情况和生活习性,结果发现,草地贪夜蛾不在锦屏县越冬,每年第一代均属外地迁飞入侵虫源,第一代迁飞入侵虫源一般4月中旬开始迁入锦屏县,4月下旬至5月上旬为迁入高峰期;每头雌虫可产卵400~600粒,卵历时2~4 d孵化成幼虫,幼虫龄期15~20 d,蛹期5~10 d.因此,通过性诱捕、高空诱虫灯等监测手段,密切监测成虫迁入时间、迁入数量对锦屏县草地贪夜蛾的实时防控具有重要的指导意义.
Fall armyworm(Spodoptera frugiperda)is one of the most important agriculture pests in current world and a serious invasive pest in China.In this research the occurrence and living habits of S.frugiperda in Jinping county of Guizhou province are investigated.The resulting data show that S.frugiperda does not overwinter in Jinping.Staring from mid-April each year,individuals of its first generation immigrate into Jinping from outside.The invasion peak occurs from late April and to early May.Each female produces 400~600 eggs,and the eggs develop into larvae in 2~4 days.The duration is 15~20 days from larvae to pupae,and 5~10 days from pupae to adults.Therefore,it is recommended to use pheromone trap barriers and high-altitude traps to monitor the invasion time and population number of this pest in Jinping county.
作者
段銮梅
杨林
龙向祥
DUAN Luanmei;YANG Lin;LONG Xiangxiang(Office of Agriculture and Rural Affairs,Jingping Guizhou 556700,China)
出处
《植物医生》
2021年第5期48-52,共5页
Plant Doctor
基金
贵州省2019年草地贪夜蛾防治专项(黔财农[2019]109号)
贵州省2020年草地贪夜蛾防控专项(黔财农[2020]37号).
关键词
草地贪夜蛾
发生特点
监测防控
fall armyworm(Spodoptera frugiperda)
characteristics of occurrence
monitoring and control
