试验表明，该病来源于烟田邻近的马铃薯地块的感病马铃薯植株。烟田离马铃薯地近发病率高，反之则低。蚜虫是主要传毒媒介。作业不科学也可传毒。综合预防措施：远离马铃薯地，及时消灭蚜虫，科学进行田间作业等；发病初期喷药物“病毒Ａ”控制该病有较好效果 Trials have shown that the disease is derived from susceptible potato plants in potato plots adjacent to tobacco fields. Near the incidence of tobacco from the potato high incidence, otherwise low. Aphids are the main vector of transmission. Unscientific operation can also be poisoned. Comprehensive preventive measures: away from the potato land, the timely elimination of aphids, scientific field operations, etc .; the early onset of spray drug “virus A” control the disease has a good effect