在烟草炼苗期采用纱网罩、病毒抑制剂 ,大田期采用病毒抑制剂和推迟移栽期来防治烟草蚜传病毒病的结果表明 ,正确使用病毒抑制剂防治效果可达到 6 0 %左右 ,随移栽期推迟烟草蚜传病毒病发病显著减轻。炼苗期烟草苗床是传毒介体有翅蚜着落的靶子中心 ,此时正值有翅蚜迁飞第一高峰期 ,蚜虫带毒率较高 ,造成苗床大量未显症的带毒苗 ,是烟田蚜传病毒病的主要初侵染源 ,为防治烟草蚜传病毒病的关键时期。用纱网罩烟苗能阻止传毒介体与烟草接触交叉传染 ,移栽前后适时喷施病毒抑制剂 ,能有效地防治烟草蚜传病毒病发生 ,同时能有效地保护环境和介体天敌 The result of using tobacco net cover, virus inhibitor, field virus inhibitor and postponing transplanting period to control tobacco aphid-borne virus disease in tobacco refining stage shows that the correct use of virus inhibitor can reach about 60% With the transfer of delayed tobacco aphids virus disease significantly reduced. Melting seedbed tobacco bed is a toxic vector aphid landing target center, at this time when the first peak of aphids migrate, aphids with higher rates of poisoning, resulting in a large number of seedbed not infected with the vaccine, Is the main source of infection of tobacco aphids virus infection, a key period for the prevention and control of tobacco aphids virus disease. With gauze cover tobacco seedlings can prevent the transmission of infectious agents and tobacco contact cross-infection, timely and pre-transplanting spraying of virus inhibitors, can effectively control tobacco aphid-borne virus disease, and can effectively protect the environment and the media predators