Jiang C X, Chen X L, Bi J C, Li J J, Xiao X H, Li Q, Wang H J, Yang Q F
College of Agronomy, Sichuan Agricultural University, 211 Huimin Rd., Wenjiang District, Chengdu 611130, Sichuan, P.R.China.
Xiushan Plant Protection Station, Xiushan 409900, Chongqing, P.R. China.
J Econ Entomol. 2015 Dec;108(6):2789-99. doi: 10.1093/jee/tov230. Epub 2015 Jul 30.
The spatiotemporal distribution of source areas for the early immigration of the white-backed planthopper, Sogatella furcifera (Horvάth), at Xiushan in the middle reach of Yangtze River of China, was analyzed with HYSPLIT (Hybrid Single-Particle Lagrangian Integrated Trajectory) and ArcGIS 10.0. The analysis was based on light trap data collected during April-July in 2000-2012. The synoptic meteorology backgrounds during the immigration periods were analyzed by GrADS (Grid Analysis and Display System). The light trap catches of S. furcifera varied monthly and annually. S. furcifera started immigration in Xiushan in early April to early May, whereas the main immigration period was in July. The distribution of the source areas varied monthly, and the core was moved from the south to the north gradually. The main source areas of S. furcifera in May were in southwestern Guangxi and northern Vietnam. The source areas of S. furcifera in June were located in southwestern Guangxi and western Hunan. Additionally, some of the pests were from southeastern Yunnan. The source areas in July were in northwestern Guangxi, southwestern Guizhou, eastern Yunnan, and the transitional parts of Guangxi, Guizhou, and Yunnan. The sum frequencies of southwest and south winds on the 850 hPa isobaric surface of Xiushan of May-July in heavy occurrence years were more than the light occurrence years. The key meteorological factors were suggested to be vertical perturbation, precipitation, and wind shear during S. furcifera immigration periods.
利用HYSPLIT（混合单粒子拉格朗日积分轨迹）和ArcGIS 10.0分析了中国长江中游秀山地区白背飞虱[Sogatella furcifera (Horvάth)]早期迁入虫源地的时空分布。分析基于2000 - 2012年4 - 7月收集的灯光诱捕数据。利用GrADS（网格分析与显示系统）分析了迁入期的天气学背景。白背飞虱的灯光诱捕量随月份和年份变化。白背飞虱于4月初至5月初开始在秀山迁入，而主要迁入期在7月。虫源地分布随月份变化，核心区域逐渐从南向北移动。5月白背飞虱的主要虫源地位于广西西南部和越南北部。6月白背飞虱的虫源地位于广西西南部和湖南西部。此外，部分害虫来自云南东南部。7月的虫源地位于广西西北部、贵州西南部、云南东部以及广西、贵州和云南的交界地带。大发生年份5 - 7月秀山850 hPa等压面上西南风和南风的合计频率高于轻发生年份。研究表明，白背飞虱迁入期的关键气象因子为垂直扰动、降水和风切变。
