番红花(Crocus sativus L.)是一种贵重药材。为了发展番红花商品生产,上海从1979、1980两年从日本进口番红花球茎,分别栽种于上海市郊。番红花球茎进口后第一年栽培中,发现在球茎田间放叶阶段,即可见花叶症状;患病植株也比较多。球茎收获后,于第二年栽培,花叶病更加蔓延。 Crocus sativus L. is a valuable medicinal material. In order to develop crocus commodity production, Shanghai imported saffron bulbs from Japan from 1979 and 1980, and planted them separately in the suburbs of Shanghai. The first year after the import of saffron bulbs cultivation, found in the field of defoliation of the leaves, you can see the mosaic symptoms; diseased plants are more. After the bulb was harvested, it was planted for the second year and mosaic disease spread more.