桑疫病是桑树的主要病害之一，各地发生普遍，对蚕桑生产的影响很大。
Mulberry bacterial disease is one of the main diseases. It occurred widely and influenced the sericultural production great- ly.
结果表明：桑疫病菌不同菌株对桑苗的致病性有明显差异，菌株对桑苗的致病性与其地区来源无明显相关性。
The results showed that there were obvious differences in the pathogenicity to mulberry seedlings between the strains of P. syringae p. v. mori tested.
桑细菌性疫病是危害桑树幼枝、叶的一种主要病害，在我国蚕区普遍发生且危害较严重。
Mulberry bacterial disease is the major and serious disease that does harm to the twigs and leaves of mulberry, and is widespread in sericultural areas.
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