《环境昆虫学报》

作者	单位
陈辉，黄乐，格桑玉珍，德吉卓玛，朱军生，胡高，陈法军，赵婧妤，万贵钧	1. 南京农业大学植物保护学院，南京 210095 2. 山东省植物保护总站，济南 250100

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中文摘要:

草地贪夜蛾 Spodoptera frugiperda 是玉米上重要的迁飞性害虫，草地贪夜蛾入侵山东对山东省玉米粮食生产构成重大威胁。因此，探明山东省早期入侵的草地贪夜蛾虫源地分布十分重要。本文根据 2019 年山东省虫情及有效积温模型，运用 HYSPLIT 模型结合气象资料，对 2019 年入侵山东省的草地贪夜蛾虫源地分布及迁入迁出气象背景场进行探索，结果表明: 山东省草地贪夜蛾的入侵时间集中在 7 月 16 日至 31 日，且虫源地主要分布在山东南部邻省地区; 副热带高压所产生的持续西南气流是草地贪夜蛾迁入山东省的关键因子; 迁入山东省的草地贪夜蛾的当代羽化时间集中在 8 月份，其可向北迁飞至河北、辽宁，在迁入地再繁殖一代后的羽化时间集中在 9 月份，可向南回迁至江苏、安徽、湖北。本研究对山东省草地贪夜蛾的预警预报及采取对应科学防控措施具有重要指导意义。

英文摘要:

Fall armywormSpodoptera frugiperda is an important migratory pest on maize. The invasion of S. frugiperda in Shandong Province poses a great threat to maize production. Therefore，it is very important to find out the source distribution of fall armyworm in Shandong Province. According to the occurrence of fall armyworm and effective accumulated temperature model in Shandong in 2019，the distribution of the source areas，as well as the meteorological background field of the immigration and emigration of fall armyworm in Shandong Province in 2019，were explored by using HYSPLIT model combined with meteorological data. The results showed that the invasion time of fall armyworm in Shandong Province was concentrated on July 16 - 31，and the source areas were mainly distributed in the southern neighboring provinces of Shandong Province; the results showed that the continuous southwest airflow due to the western pacific subtropical high pressure was the key factor for the migration of fall armyworm into Shandong Province; the eclosion time of immigrant generation in Shandong Province was concentrated in August，and it could migrate northward to Hebei and Liaoning，and the eclosion time of its younger generation in the immigrant areas was concentrated in September，and it could migrate southward to Jiangsu，Anhui，and Hubei. This study is of great significance for early warning and scientific control of fall armyworm in Shandong.

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