大蒜病害调查病原鉴定及其防治

Disease survey and pathogen identification of garlic (Allium sativum ) and control methods

通过对我省大蒜主要产区的病害调查和病原鉴定,共发现大蒜病害14种,其中真菌性病害9种,细菌性病害1种,另有4种病害病原不明。调查结果表明:白腐病、白斑病在天水、陇南两地分布广泛且严重,可造成毁灭性损失,其中白斑病为国内首次报道。紫斑病、花叶病在各产区均有分布,民乐县发生相对较重。黑头病、叶霉病、青霉病、煤斑病、锈病、软腐病等在各地均有分布,但不严重。根据调查及鉴定结果,从无公害生产的角度出发,提出了相应的防治措施。

A series of survey on garlic diseases were conducted in the main planting area of Gansu province.14 kinds of diseases were recorded and their pathogens were identified. Among these diseases, there were 9 fungal diseases and 1 bacterial disease pathogens of another four diseases were unknown. The results of survey showed that Garlic white rot and Garlic white spot were widespread and devastating damage in Tianshui and Longnan areas, and White spot was first recorded in China. Alternaria leaf spot and Garlic mosaic disease were spread in planting areas of Garlic, but Mingle county was more serious than other areas. Garlic Embellisia clove spot, Garlic blue mold, rust, Tip blight, Cladosporium blight and soft rot were widespread but not serious. Based on the results of survey and identification, from the point of publicly harmless production, a set of control methods were set up.