摘要
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 。
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.
出处
《山西农业科学》
2000年第3期72-74,共3页
Journal of Shanxi Agricultural Sciences
