（南京农业大学昆虫学系 农作物生物灾害综合治理教育部和农业部重点实验室南京210095）摘要通过灯下诱虫情况调查、毒源地分析、轨迹模拟、ArcGIS技术以及天气学背景分析，阐释了2009、2010年江西省上犹县发现的南方水稻黑条矮缩病（SRBSDV）的供毒源地情况，以及白背飞虱Sogatella furcifera (Horváth) 携毒的传递路径。结果显示：(1) 通过对白背飞虱迁入上犹的虫源地与经鉴定的南方水稻黑条矮缩病发病区域的叠加分析，明确了传入上犹的毒源地分布于广东、广西、海南3省区境内。(2) 西南低空急流及偏南气流是白背飞虱将我国南方的病毒远距离传送到上犹县境内的动力源。(3) 白背飞虱随下沉气流和降雨在上犹境内的集中降落是SRBSDV在当地暴发的触发条件。
关键词南方水稻黑条矮缩病， 白背飞虱， 迁飞轨迹， 毒源区

Identifying the source regions of Southern rice blackstreaked dwarf
virus transmitted by Sogatella furcifera (Horváth) in Shangyou，
Jiangxi Province ZHAO Yue** ZHANG XiaoXiZHAI BaoPing***
（Department of Entomology， College of Plant Protection， Nanjing Agricultural University， Key Laboratory of Integrated
Management of Crop Diseases and Insect Pests，Ministry of Education，Ministry of Agriculture of China， Nanjing210095， China）

AbstractThe source regions of the Southern rice blackstreaked dwarf virus (SRBSDV) transmitted by its vector, the whitebacked planthopper, Sogatella furcifera (Horváth) (WBPH), were analyzed in Shangyou, Jiangxi in 2009 and 2010. Coincidence in the migratory pathways of WBPH and virus source regions were identified through light trap catches, identification of areas affected by the virus, migration trajectory analysis, synoptic weather and ArcGIS tech. The results indicate that: (1) The source areas of the virus in Shangyou were mainly in Guangdong, Guangxi, and Hainan Provinces. (2) Riding on the prevailing southwest or south wind, WBPH transmitted this virus from southern China to Shangyou. (3) The immigration of concentrated airborne WBPH under climatic conditions of downdraft and rainfall triggered the epidemic outbreak of SRBSDV in Shangyou in 2009 and 2010.
Key wordsSouthern rice blackstreaked dwarf virus， Sogatella furcifera， migration trajectory， source regions of virus