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１９９３～１９９６年进行了陕西省关中大蒜病害调查和病原鉴定，结果共发现１４种病害。叶部病害以匐柄霉叶枯病和锈病分布广泛而严重，前者能引起复杂的症状，造成毁灭性损失，芽枝霉叶斑病、紫斑病、灰霉病仅局部地块有发生。蒜薹白斑腐烂病是首次报道的病害，贮藏蒜薹损失率高达５０％～６０％．蒜薹的灰霉腐烂也较普遍。田间危害鳞茎和根部的病害有白腐病和软腐病，贮蒜病害有曲霉病、黑斑病、灰霉病、红腐病和青霉病等。此外，大蒜花叶病毒和大蒜潜隐病毒发生普遍而严重，另有一种病原未明的黄（红）叶病，仅局部发生。
From 1993 to 1996, the investigation of garlic diseases and identification of pathogen in Guanzhong of Shaanxi Province were carried out. As a result, 14 diseases were found. Leaf disease to wintering mold leaf blight and rust widespread and serious distribution, the former can cause complex symptoms, causing devastating damage, bud bud mildew spot, purple spot, gray mold only local block have occurred. Garlic white rot disease is the first reported disease, garlic sprouts loss rate as high as 50% to 60%. Garlic gray mold rot is also more common. Field damage bulbs and roots of the disease are white rot and soft rot, garlic disease aspergillosis, black spot, gray mold, red rot and blue mold and so on. In addition, Garlic mosaic virus and Garlic latent virus are common and severe, and another yellow (red) leaf disease with unknown pathogens occurs only locally.