瓜类霜霉病的防治
Yunnan Agricultural Science and Technology（2007）
Abstract
<正>瓜类霜霉病是发生较普遍、流行性较强、危害较严重、可周年发生的叶斑病,一般减产30%以上。主要靠气流、雨水及昆虫传播,病菌从植株的气孔及表皮侵入。地块多湿、不通风、缺肥等易发病。
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