摘要
系统地调查云南烟草丛枝症病害的田间自然发病情况和介体发生情况，并实验测定烟草品种的抗病性，结果表明：烟草丛枝症病害在病区常年均有发生，最早发病时间在４月下旬，保山市１９９４，１９９５和１９９７年属一般年份，１９９３，１９９６和１９９８年属流行年份，导致病害流行的主要因素是苗期和移栽初期的两次蚜虫迁飞期高峰，以网罩隔离培育无毒烟苗、避开蚜虫迁飞高峰期移栽并同时施药是最有效的防治方法．目前生产上审定推广的品种全为高感品种，测定３１个烤烟和１４５个晒晾烟品种未发现抗病品种．
Investigating systematically the circumstances of the infection of the field and vectors
producing and detecting the disease resistance of sorts of tobacco,the result showed that the
disease had often happened in these diseased places and begun in later April.The disease was
serious in 1993,1996,1998,but was normal in 1994,1995,1997.The main factor of the disease
happening was two summits of aphids migrating in young plants and early transplanting
periods,so the effective ways were culturing health young plants isolated with net,transplanting
not in the summits of aphids migrating and using insecticide during the time.No diseased
resistant sort of tobacco had been found until now in production.
出处
《云南农业大学学报》
CAS
CSCD
1999年第1期87-90,共4页
Journal of Yunnan Agricultural University
基金
云南省应用基础研究基金
云南省烟草科研基金
关键词
云南
烟草丛枝症病害
发病规律
危害
Tobacco
witches'broom symptom disease
Infecting law
Harm J
