近年来由番茄黄化曲叶病毒(tomato yellow leaf curl virus,TYLCV)导致的番茄黄化曲叶病给江苏省及周边地区番茄生产造成了惨重的损失,除番茄外,TYLCV还可以侵染多种作物及杂草,这些非番茄寄主在番茄黄化曲叶病的周年发生中起着重要的作用。为明确TYLCV的寄主范围,2012—2014年对TYLCV在江苏省及周边地区的寄主范围进行了调查。结果显示,除番茄外TYLCV还可以侵染菜豆,并导致严重的矮化及皱缩症状,暗示TYLCV的发生可能成为菜豆种植的新威胁。杂草寄主的调查结果显示,TYLCV可以侵染铁苋菜、皱果苋,暗示这2种杂草是TYLCV的中间寄主,可能在TYLCV的周年循环中起作用。 In recent years, tomato yellow leaf curl virus (tomato yellow leaf curl virus) (TYLCV) induced tomato leaf curl disease in Jiangsu Province and its surrounding areas caused heavy losses of tomato production, in addition to tomatoes, TYLCV can also infect more Crops and weeds, these non-tomato hosts play an important role in the annual occurrence of tomato yellow leaf curl disease. In order to clarify the host range of TYLCV, the host range of TYLCV in Jiangsu Province and the surrounding areas was investigated from 2012 to 2014. The results showed that TYLCV, besides tomato, could also infect Beans, leading to severe dwarf and shrunken symptoms, suggesting that the occurrence of TYLCV may be a new threat to bean cultivation. Results of weeds host survey showed that TYLCV could infect amaranth and wrinkled amaranth, indicating that these two weeds are intermediate hosts of TYLCV and may play a role in the annual cycle of TYLCV.