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成县是甘肃大蒜的主产区之一,年种植大蒜3330hm2以上。2007年春季大蒜紫斑病(Alternaria porri L.)在成县暴发流行,造成大蒜品质降低和大幅
County is one of the main producing areas of garlic in Gansu, planting more than 3330hm2 garlic. The spring of 2007, purple garlic disease (Alternaria porri L.) outbreaks in the county in Chengdu, causing the garlic to reduce the quality and large