The Influence of Sogatella furcifera (Hemiptera: Delphacidae) Migratory Events on the Southern Rice Black-Streaked Dwarf Virus Epidemics.
Southern rice black-streaked dwarf virus (SRBSDV) caused serious rice losses. After the first outbreak in 2009 in northern Vietnam and southern China, the virus ravaged crops again on enormous scales in 2010, but infections have decreased sharply since 2011. We presumed that the sudden epidemics and fadeout of SRBSDV would be closely related to the migratory events of the insect vector, Sogatella furcifera. This study sought the source area of SRBSDV using the trajectory analysis method, and revealed the relationship between SRBSDV dynamics and migration of S. furcifera populations via an in-depth analysis of meteorological background of S. furcifera migration fields. The results showed that Northern Vietnam was the direct virus source area of the SRBSDV infection in China, and South Central Coast of Vietnam was the original source area of SRBSDV. Southwesterly winds were prevalent in spring of 2010 and carried large numbers of viruliferous S. furcifera to China from northern Vietnam. This infestation of S. furcifera was the direct cause of the SRBSDV outbreak in China in 2010. In 2011, the winter-spring temperatures were abnormally low and southeasterly and easterly winds dominated; therefore, the number of viruliferous S. furcifera that entered China was small, and consequently, the occurrence area of SRBSDV was rapidly reduced. The return of viruliferous S. furcifera to South Central Coast of Vietnam was an important factor that affected the occurrence scale of SRBSDV in the following year.
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China (15150535703@163.com; 2012202039@njau.edu.cn; 2004202021@njau.edu.cn; 2014102108@njau.edu.cn; 2013102097@njau.edu.cn; 2013102063@njau.edu.cn; 2015102103@njau.edu.cn; tuanha.bvtv@mard.gov.vn; bpzhai@njau.edu.cn).
Yan
Y
Wu
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China (15150535703@163.com; 2012202039@njau.edu.cn; 2004202021@njau.edu.cn; 2014102108@njau.edu.cn; 2013102097@njau.edu.cn; 2013102063@njau.edu.cn; 2015102103@njau.edu.cn; tuanha.bvtv@mard.gov.vn; bpzhai@njau.edu.cn).
Guo
G
Zhang
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China (15150535703@163.com; 2012202039@njau.edu.cn; 2004202021@njau.edu.cn; 2014102108@njau.edu.cn; 2013102097@njau.edu.cn; 2013102063@njau.edu.cn; 2015102103@njau.edu.cn; tuanha.bvtv@mard.gov.vn; bpzhai@njau.edu.cn).
Xiao
X
Chen
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China (15150535703@163.com; 2012202039@njau.edu.cn; 2004202021@njau.edu.cn; 2014102108@njau.edu.cn; 2013102097@njau.edu.cn; 2013102063@njau.edu.cn; 2015102103@njau.edu.cn; tuanha.bvtv@mard.gov.vn; bpzhai@njau.edu.cn).
Xi-Jie
XJ
Li
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China (15150535703@163.com; 2012202039@njau.edu.cn; 2004202021@njau.edu.cn; 2014102108@njau.edu.cn; 2013102097@njau.edu.cn; 2013102063@njau.edu.cn; 2015102103@njau.edu.cn; tuanha.bvtv@mard.gov.vn; bpzhai@njau.edu.cn).
Kai
K
Xiong
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China (15150535703@163.com; 2012202039@njau.edu.cn; 2004202021@njau.edu.cn; 2014102108@njau.edu.cn; 2013102097@njau.edu.cn; 2013102063@njau.edu.cn; 2015102103@njau.edu.cn; tuanha.bvtv@mard.gov.vn; bpzhai@njau.edu.cn).
Shu-Pei
SP
Cao
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China (15150535703@163.com; 2012202039@njau.edu.cn; 2004202021@njau.edu.cn; 2014102108@njau.edu.cn; 2013102097@njau.edu.cn; 2013102063@njau.edu.cn; 2015102103@njau.edu.cn; tuanha.bvtv@mard.gov.vn; bpzhai@njau.edu.cn).
Yan-Yue
YY
Hu
National Agricultural Techniques Extension and Service Center, the Ministry of Agriculture, Beijing 100125, China (luminghong@agri.gov.cn; liuwancai@agri.gov.cn).
Ming-Hong
MH
Lu
National Agricultural Techniques Extension and Service Center, the Ministry of Agriculture, Beijing 100125, China (luminghong@agri.gov.cn; liuwancai@agri.gov.cn).
Wan-Cai
WC
Liu
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China ( 15150535703@163.com ; 2012202039@njau.edu.cn ; 2004202021@njau.edu.cn ; 2014102108@njau.edu.cn ; 2013102097@njau.edu.cn ; 2013102063@njau.edu.cn ; 2015102103@njau.edu.cn ; tuanha.bvtv@mard.gov.vn ; bpzhai@njau.edu.cn ).|Department of Plant Protection, Ministry of Agricultural and Rural Development, Hanoi 115302, Vietnam.
Hoang-Anh
HA
Tuan
Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China (super_qi@163.com).
Guo-Jun
GJ
Qi
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China ( 15150535703@163.com ; 2012202039@njau.edu.cn ; 2004202021@njau.edu.cn ; 2014102108@njau.edu.cn ; 2013102097@njau.edu.cn ; 2013102063@njau.edu.cn ; 2015102103@njau.edu.cn ; tuanha.bvtv@mard.gov.vn ; bpzhai@njau.edu.cn ).|Corresponding author, e-mail: bpzhai@njau.edu.cn.
Bao-Ping
BP
Zhai
D063147:Animal Distribution; D025041:Animal Migration; D000818:Animals; D002681:China; D006430:Hemiptera / Q000502:physiology* / Q000821:virology*; D012275:Oryza / Q000821:virology*; D010935:Plant Diseases / Q000821:virology*; D012087:Reoviridae / Q000502:physiology*; D014744:Vietnam
long-range migration; population reconstruction; trajectory analysis; virus–insect interaction