51问答网 > 紫罗兰的花叶病会出现哪些症状？

紫罗兰的花叶病会出现哪些症状？

2025-03-14 22:03:12
推荐回答（1个）
回答1：

紫罗兰花叶病：分布：全世界。影响切花质量和产量。

症状：受病叶片出现明脉、斑驳、花叶或系统褪绿斑，有时出现细小坏死斑，花碎锦。严重时病株矮，叶簇生，叶缘上卷，叶片扭曲和皱缩，花梗扭曲严重影响切花。

发病规律：十字花科或其他病株是田间初侵染源，通过多种蚜虫传播。

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