Abstract:

Tobacco black shank is one of the main plant diseases which is caused by bacteria. Tobacco black shank recent years it is serious and always incidence with solanacearum. All of these lead to a significant decline and lower quality on tobacco. So Strengthen comprehensive methods to prevention and control the tobacco black shank is essential for sustainable development of flue-cured tobacco. In this article, there was a exhaustive introduce on the tobacco black shank symptoms, pathogen, infection cycle, incidence of conditions, the pathogenesis and the chemical prevention and control history, current situation and problems on tobacco black shank. the article also focus on the developed fungicides recently, and list a forward view on strengthen the risk assessment on pesticide resistance , strengthen the new mixture of pharmacy and promote the use of, strategy on use the fungicide scenically and rationally. All of these was in order to control the occurrence and development of the tobacco disease and provided a reference on the study of tobacco black shank.