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白菜霜霉病又叫枝干、霜叶，是十字花科蔬菜的主要病害之一，我国各地都有发生。解决这一问题要采取以下行之有效的综合防治措施。一、选用抗病品种目前虽然没有对霜霉病免疫的品种，但不同的白菜品种对霜霉病抵抗力差异很大。一般较好的抗病品种有：北京抱头青、拧心青；天津
Cabbage downy mildew is also called stem, frost, cruciferous vegetables is one of the major diseases, all over China have occurred. To solve this problem, we must adopt the following effective integrated prevention and control measures. First, the selection of resistant varieties Although currently there is no variety of downy mildew immunity, but different varieties of cabbage resistance to downy mildew vary greatly. Generally better resistant varieties are: Beijing Baotouqing, screw heart Qing; Tianjin