Mulberry bacterial disease is one of the main diseases. It occurred widely and influenced the sericultural production great- ly.
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。
2
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.
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。
3
The new mulberry varieties bred by The Sericultural Research Institute of Shandong, which originated from the endemic mulberry varieties of Shandong, inherit the good points of the parent.