榕江县地处贵州省东南部，气候温和，雨量充沛，是种植早熟大蒜较为适宜的地区，种植大蒜已有多年的历史。但是，随着种植时间的延长，大蒜病害发生越来越严重，尤其是大蒜叶枯病，常大面积发生，造成大片的蒜叶枯死，轻者蒜薹细小，质量低劣；重者抽不出薹，影响产量，甚... Rongjiang County, located in the southeastern part of Guizhou Province, has a mild climate and abundant rainfall. It is a suitable area for growing early-ripening garlic. Garlic cultivation has been going on for many years. However, with the extension of planting time, the occurrence of garlic diseases is more and more serious, especially garlic leaf blight, often occur in large area, resulting in large pieces of garlic leaves withered, light garlic sprouts small, poor quality; , Affect the yield, very ...