昭通烟草脉斑病发病规律的研究  

Study on Occurrence Regularity of Tobacco PVY in Zhaotong

作　　者：游堂贵 张磊[2] 丁铭[2] 赵声春 熊玲[3] 尹梅[3] 

机构地区：[1]云南省烟草公司昭通市公司,云南昭通657000 [2]云南省农业科学院生物技术与种质资源研究所,云南昆明650223 [3]云南省烟草公司昭通市昭阳区公司,云南昭通657000

出　　处：《西南农业学报》2013年第1期181-186,共6页Southwest China Journal of Agricultural Sciences

基　　金：云南省烟草公司科技计划项目(09YN034)

摘　　要：连续2年对昭通市烟草脉斑病发病规律进行研究。结果表明,该病在昭通的初发期为6月中下旬,7月下旬至8月中下旬进入盛发期。初发期和盛发期均与蚜虫的迁飞高峰期密切相关,同时与气候、移栽期、施肥、蚜虫等因素相关。延迟第1次烟草PVY阳性率高点的时间,降低PVY阳性率是防治烟草脉斑病的关键措施之一。The occurrence regularity of tobacco PVY in two successive years was studied in Zhaotong. The results showed that early occur- rence stage of the diseases was in the middle or late of June,and full occurrence stage was from the late of July to the middle or late of Au- gust. The occurrence of the disease was closely related to climate, transplanting time, fertilization, and Myzus persicae （Sulzer）. It was the key method to control the diseases by delaying the time when the tobacco PVY positive rate was first the highest rate at the whole growth stage.

关 键 词：烟草脉斑病 发病规律 

分 类 号：S435.6[农业科学—农业昆虫与害虫防治]