浙江入侵草地贪夜蛾的迁入虫源

doi:10.16819/j.1001-7216.2020.9076

中国水稻科学 ›› 2020, Vol. 34 ›› Issue (1): 80-87.DOI: 10.16819/j.1001-7216.2020.9076

浙江入侵草地贪夜蛾的迁入虫源

罗举¹, 马健², 武明飞², 齐国君³, 刘杰⁴, 唐健¹, 胡高^2,^*()

¹中国水稻研究所,杭州 310006
²南京农业大学昆虫系,南京 210095
³广东省农业科学院植物保护研究所/广东省植物保护新技术重点实验室,广州 510640
⁴全国农业技术推广服务中心测报处,北京 100125

出版日期:2020-01-10 发布日期:2020-01-10
通讯作者: 胡高
作者简介:
作者简介:^#共同第一作者
基金资助:
国家自然科学基金资助项目(31822043);浙江省自然科学基因资助项目（LY20C140008）;中央高校基本科研业务费专项（KYZ201920、KJJQ201803）;广东省现代农业产业共性关键技术研发创新团队建设项目（2017LM1078）;广西农业科学院基本科研业务专项（桂农科院2019Z15）

Original Area of Fall Armyworm Individuals Newly Invaded in Zhejiang Province

Ju LUO¹, Jian MA², Mingfei WU², Guojun QI³, Jie LIU⁴, Jian Tang¹, Gao HU^2,^*()

¹China National Rice Research Institute,Hangzhou 310006,China
² Department of Entomology,Nanjing Agricultural University,Nanjing 210095,China
³Guangdong Provincial Key Laboratory of High Technology for Plant Protection / Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
⁴Division of Pest Forecasting, China National Agro-Tec Extension and Service Center, Beijing 100125, China

Online:2020-01-10 Published:2020-01-10
Contact: Gao HU
About author:
About author:^#These authors contributed equally to this work

摘要/Abstract

摘要：

【目的】草地贪夜蛾是新入侵我国的重要迁飞性害虫,2019年5月8日浙江省建德市发现草地贪夜蛾入侵为害,已在全省迅速扩散蔓延。明确浙江省发现的草地贪夜蛾种群的虫源地分布及迁飞路径,对浙江省草地贪夜蛾的监测预警及源头治理有重大意义。【方法】利用基于WRF模式的昆虫三维轨迹分析程序,结合草地贪夜蛾的飞行行为参数和气象资料,对入侵浙江的草地贪夜蛾的迁飞路径及天气背景场进行了模拟分析。【结果】根据幼虫发育历期推算,4月26日–30日可能有首批草地贪夜蛾成虫迁入浙江省。4月下旬,西南低空急流贯穿华南及华东大部,可为草地贪夜蛾迁飞提供运载气流,而低温屏障、降雨和下沉气流可导致草地贪夜蛾的迫降。入侵浙江省建德市草地贪夜蛾种群的有效虫源地主要分布在广西东部。【结论】本研究结果为浙江省草地贪夜蛾春季迁入种群的监测预警和科学防控提供了依据。

关键词: 草地贪夜蛾, 天气背景场, 迁入路径, 轨迹分析, 虫源地

Abstract:

【Objective】The fall armyworm, [Spodoptera frugiperda (J. E. Smith), FAW] is a significant migratory pest newly invaded China. It was discovered in Jiande City of Zhejiang Province on 8 May 2019, and thereafter spreaded rapidly throughout Zhejiang Province. A better understanding of the distribution of the source areas and the migration path of FAW populations will be beneficial for the monitoring, early warning and the source control of this pest in Zhejiang Province. 【Methods】The migratory routes and weather fields for the newly invasive population in Zhejiang Province were analyzed by using a trajectory simulation approach, combined with flight behaviour and meteorological data.【Result】According to the larval developmental period, the first batch of FAW adults may immigrate into Zhejiang Province from 26 to 30 April. In late April, the southwesterly airflow passed through most part of southern and eastern China, providing a carrier airflow for the FAW migrants, while low temperature barriers, rainfall and sinking airflow can cause a forced landing of the FAW. The effective source of the FAW invasive population in Jiande City, Zhejiang Province is mainly distributed in eastern Guangxi.【Conclusion】This research results lay a basis for the monitoring, early warning, scientific prevention and control of the spring immigrants of FAW in Zhejiang Province.

Key words: Spodoptera frugiperda (J. E. Smith), weather condition, migratory route, trajectory analysis, insect source area

中图分类号:

S435.112⁺.9

罗举, 马健, 武明飞, 齐国君, 刘杰, 唐健, 胡高. 浙江入侵草地贪夜蛾的迁入虫源[J]. 中国水稻科学, 2020, 34(1): 80-87.

Ju LUO, Jian MA, Mingfei WU, Guojun QI, Jie LIU, Jian Tang, Gao HU. Original Area of Fall Armyworm Individuals Newly Invaded in Zhejiang Province[J]. Chinese Journal OF Rice Science, 2020, 34(1): 80-87.

图/表 5

表1 WRF模式方案与参数

Table 1 Selection of scheme and parameters of the WRF model.

项目 Item	区域1 Domain 1
中心位置 Location	26°N, 105°E
水平网格 The number of grid points	150×160
格距 Distance between grid points	30 km
垂直层 Layers	30
地图投影 Map projection	Lambert
微物理过程 Microphysics scheme	WSM6
长波辐射方案 Longwave radiation scheme	RRTMG
短波辐射方案 Shortwave radiation scheme	RRTMG
近地面层方案 Surface layer scheme	Monin-Obukhov
陆面过程方案 Land/water surface scheme	Noah
边界层方案 Planetary boundary layer scheme	YSU
积云参数化方案 Cumulus parameterization	Tiedtke
模拟时长 Forecast time	72 h

图1 2019年4月26–30日19:00-05:00我国南方地区大气环流背景场 A~E–850 hPa水平平均风场的模拟流线和等值线(阴影为风速,单位m/s);F~J–模拟累计降雨量(单位mm);K~O–850 hPa温度的模拟等值线(阴影为温度,单位℃);P~T–建德市800–950 hPa垂直风速的时间-高度剖面图(单位m/s)。三角形表示建德市位置。

Fig. 1. Atmospheric circulation field during 19:00 to 05:00 in Guangdong, Jiangxi and Zhejiang provinces from April 26th to April 30th, 2019. A~E, The simulated streamline and isotach of horizontal average wind fields at 850 hPa (The shade area represents wind speed, m/s); F~J, The simulated accumulated precipitation (mm); K~O, The simulated isotach of horizontal average temperature at 850 hPa (The shade area represents temperature (℃); P~T, Time-height profile of vertical velocity (m/s) from 800 to 950 hPa in Jiande City (m/s). The triangle represents Jiande City.

图2 2019年4月26日-5月7日19:00–05:00建德市850~950 hPa风玫瑰图颜色部分的面积与落在每个22.5°风向的数量成正比。

Fig. 2. Circular histograms of wind directions at 850~950 hPa during 20:00 to 06:00 in Jiande City from April 26th to May 7th. The area of the color segments is proportional to the number of occasions when wind directions fell within each 22.5° bin.

图3 2019年4月26日–5月7日建德市850和900 hPa温度的时间-高度剖面图。

Fig. 3. Time-height profile of temperature at 850 and 900 hPa in Jiande City from April 26th to May 7th, 2019.

图4 2019年4月26日–5月7日建德市草地贪夜蛾的回推轨迹分析

Fig. 4. Backward trajectories of Spodoptera frugiperda in Jiande City form 26 April to 7 May, 2019.

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浙江入侵草地贪夜蛾的迁入虫源

Original Area of Fall Armyworm Individuals Newly Invaded in Zhejiang Province

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