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葡萄穗轴褐枯病是我国葡萄产区一种新的病害,近几年在哈密市蔓延迅速。通过对哈密市回城乡采集的葡萄受害穗标样进行鉴定,葡萄穗轴褐枯病病原为半知菌亚门葡萄生链格孢霉(AlternariaviticolaBrun)。主要为害葡萄果穗幼嫩的穗轴组织。田间出现症状在5月下旬～6月下旬,病菌能以分生孢子在葡萄枝蔓表皮或芽鳞片内越冬,借风雨传播,不同品种对葡萄穗轴褐枯病抗病性有一定的差异。
Grape Cotyledon wilt is a new disease in grapevine producing areas of our country and has spread rapidly in Hami in recent years. Through the identification of grapes harvested from the urban areas of Hami City, the pathogen of brown rot of grape cotyledons is Alternaria viticola Brun. The main damage to grape spike young cob tissue. Symptoms in the field in late May to late June, the bacteria can spore in the grape vine branch epidermis or bud scales within the winter, spread by wind and rain, the different varieties of the resistance of the grape panicle blight disease have some differences.