烟草青枯病的病原特性及流行预警

烟草青枯病是当前烟草生产中发生面积大、危害严重、防控困难的土传病害,也是烟草病虫害绿色防控最为关键的流行性病害.作为一种典型的维管束细菌性病害,植株感病属于系统性侵染,条件合适时会突然暴发危害,因此,监测预警十分重要.本文总结了烟草青枯病病原特性、发病症状及病害侵染循环的特点,介绍了影响青枯病发生的关键因子,提出了青枯病的调查与监测预警方法,旨在为烟草青枯病的基础理论研究及有效推进绿色防控提供有力支撑.

Characteristics of the Pathogen of Tobacco Bacterial Wilt and Its Epidemic Warning

Tobacco bacterial wilt is a soil borne disease with large area,serious harm and difficulty in control in tobacco cultivation.It is also the most critical epidemic disease for green control of tobacco diseases and pests.As a typical vascular bacterial disease,plant susceptible disease is a systemic infection.When the conditions are right,it will break out suddenly.Therefore,monitoring and early warning of this disease is of great importance.In order to provide strong support for the basic theoretical research of tobacco bacterial wilt and effectively promote its green prevention and control,this paper summarizes the pathogenic characteristics,symptoms and infection cycle of tobacco bacterial wilt,introduces the key factors affecting its occurrence,and proposes the methods of its investigation,monitoring and early warning.