The cucumber downy mildew is a common disease of cucumber and cause serious loss.

黄瓜霜霉病是黄瓜生产上的一种常见病害，对黄瓜的产量危害较大。

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This paper reported typical symptoms of cucumber downy mildew in early and mid-late stage, described 5 of its non-typical symptoms and analyzed the causing reasons.

报道了黄瓜霜霉病的前期和中后期典型症状特点，描述了多角形亮斑、多角形枯斑、疱斑形病斑、凹陷形病斑、缘枯形病斑等5种非典型症状，并分析了形成的原因。

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Now, the markers of powdery mildew and downy mildew in cucumber have been found, but there was no report on molecular markers of cucumber wilt up to date.

目前利用分子标记已找到了与黄瓜白粉病和霜霉病抗性相关基因连锁的分子标记，但与黄瓜枯萎病抗性相关基因连锁的分子标记研究国内目前尚未见报道。

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