摘要
基于2019—2022年江苏草地贪夜蛾虫情监测资料,分析了草地贪夜蛾的时空发生特征及其影响因素。结果表明:草地贪夜蛾发生区域主要集中在淮河以南地区,东部沿海的盐城和南通两地为重发区,2020年是近4 a来重发面积最大的年份;草地贪夜蛾在江苏主要危害玉米,春玉米、常规夏玉米、迟播夏玉米上均有发生,其中迟播夏玉米发生程度最重,多为集中连片发生,最高百株虫量在54.7~125.6头,最高被害株率均在93.0%以上;成虫迁入江苏的时段主要是5—9月,其中6—7月为成虫迁入峰期;草地贪夜蛾重发区、迁入峰期等与玉米种植情况、迁飞规律、大气环流、气象条件等因素密切相关。可为精准制定防控策略和监测预警提供科学依据。
Based on the monitoring data of spodoptera frugiperda in Jiangsu Province from 2019 to 2022,the temporal and spatial occurrence characteristics of spodoptera frugiperda and its main influencing factors were analyzed.Results show that the spodoptera frugiperda was mainly concentrated in the south of the Huaihe River,and Yancheng and Nantong were the areas with serious occurrence of spodoptera frugiperda.The year with the largest recurrence area of the spodoptera frugiperda was 2020 in the past four years.It mainly harms maize in Jiangsu,including spring maize,conventional summer maize and late sowing summer maize.The late sowing summer maize had the most serious occurrence,most of which occurred in a concentrated and continuous manner.The maximum number of insect pests per hundred plants ranged from 54.7 to 125.6,and the maximum percentage of damaged plants was above 93.0%.The migration period of adults to Jiangsu was mainly from May to September,of which June to July was the peak period for adults to migrate.The serious occurrence area and migration peak period of the spodoptera frugiperda are closely related to corn planting,migration rules,atmospheric circulation and meteorological conditions.The research can provide scientific basis for formulating accurate prevention and control strategies and monitoring and early warning.
作者
徐敏
张海波
徐忆菲
郭安红
杨荣明
高苹
XU Min;ZHANG Haibo;XU Yifei;GUO Anhong;YANG Rongming;GAO Ping(Climate Center of Jiangsu Province,Nanjing 210019,China;Plant Protection and Plant Quarantine Station of Jiangsu Province,Nanjing 210036,China;National Meteorological Center,Beijing 100081,China)
出处
《气象科学》
北大核心
2023年第6期790-797,共8页
Journal of the Meteorological Sciences
基金
江苏省气象局科研基金资助项目(KZ202002)
重大农业害虫草地贪夜蛾监测预警与绿色防控技术研发项目(BE2020349)。
关键词
草地贪夜蛾
时空发生特征
影响因子
spodoptera frugiperda
spatiotemporal characteristics
impact factor
作者简介
通信作者:郭安红.guoah@cma.gov.cn。
