单 位：
江华瑶族自治县植保植检站湖南农业大学植物疾病控制与利用湖南省高校重点实验室湖南农业大学植物病虫害生物学与防控湖南省重点实验室;江华瑶族自治县农技推广中心涛圩分站;湖南农业大学生物安全科学技术学院
关键词：
水稻南方黑条矮缩病;主要症状;白背飞虱;病害流行因子;防治对策
摘 要：
为了有效地防控南方黑条矮缩病(SRBSDV),于2010年调查了该病在江华县早、中、晚稻上的发生情况、主要症状。结果表明:早稻SRBSDV发生面积虽大,但发病程度轻,主要因为感染局限在本田;中稻发病重是因为在秧田3叶期遇上了传毒飞虱成虫迁入的高峰。根据调查结果分析了传毒昆虫、栽培方式、气象条件以及化学防治对SRBSDV发生的影响,并讨论了江华县SRBSDV病株的3种特殊症状。最后提出了监测病情,"治虱防矮",抓住2～4叶关键防治时期等防控建议。
译 名：
Occurrence Characteristics and Influence Factors of Southern Rice Black-streaked Dwarf Virus Disease in Jianghua County in 2010
作 者：
ZHAO Ming-ping1,ZHU Jun-zi2,ZHONG Shi-chun1, ZHOU Qian2,3,JIANG Zhang-fu1,GAO Bi-da2,3 (1.Plant Protection and Plant Quarantine Station of Jianghua County,Hunan 425500,PRC;2.Key Lab of Plant Disease Control and Utilization,College of Hunan Province,HNAU,Changsha 410128,PRC;3.Key Laboratory for Biology and Control of Plant Diseases and Insect Pests,College of Hunan Province,HNAU,Changsha 410128,PRC)
关键词：
southern rice black-streaked dwarf virus disease;main symptoms;white-backed planthopper;epidemical factor;control strategy
摘 要：
In order to prevent and control the southern rice black-streaked dwarf virus(SRBSDV) disease effectively,the occurrence situations and main symptoms of SRBSDV on early rice,middle rice and late rice were investigated in Jianghua County,Hunan Province in 2010.The results indicated that the occurrence area of SRBSDV on early rice was large,but the damage level was low,the main reason was the early rice plants were infected in the same paddy-field;the middle rice suffered the heaviest yield loss because immigration peak of white-backed plant-hopper showed in nursery at 3-leaf-age.Then,the influences of virus transplanting insect,cultivation mode,weather condition and chemical control on SRBSDV occurrence were analyzed according to the investigation results,and three special symptoms of SRBSDV in Jianghua County were discussed.In the end,some control suggestions were suggested,such as monitoring disease situations,control plant-hopper and prevent dwarf,especially application of insecticides to kill vector planthopper at 2~4-leaf-stage of rice,etc..
