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随着城乡人民生活水平的提高,人们对淡季高挡蔬菜的需求量急剧上升,河北省保护地韭菜除满足本省的需要,还远销京、津、东北等地为菜农的重要经济来源。由于保护地的特殊栽培方式;一些露地栽培的次要病害上升为主要病害,韭菜灰霉病尤为突出,此病在露地韭菜上零星发生一般年份不影响产量和品质,但在保护地栽培的韭菜上已成为华北各省及部份南方地区的重要病害。我们从1985年冬—1986春在河北省有代表性地区调查:秦皇岛市山海关区扣棚韭菜约4500亩,因灰霉病毁产达800亩(包括收1—2刀后绝产)每亩损失产值600—800元,保定市西康庄调查了15个韭菜拱棚其中10个棚病指数达30%以上,有三个棚全部烂掉,邯郸市邯山区扣棚韭菜近400亩几乎块块发病,有的只割一刀,以后刀刀烂掉,辛集市军齐韭菜专业乡,保护地韭菜占总耕地的十分之一以上,因灰霉病减少产值30—40%。因此对保护地韭菜灰霉病发生、流行规律和防治研究已成为生产上迫切需要解决的问题。此病国内很少研究只是李明远等有过报导。为此我们于1985年冬—1986春对河北省扣棚韭菜进行调查研究和防治试验。
With the improvement of people’s living standards in urban and rural areas, the demand for vegetables in high season in off-season has risen sharply. In addition to meeting the needs of the province, leeks in Hebei province are also exported to the important economic sources for vegetable farmers in Beijing, Tianjin and Northeast China. Due to the special cultivation of protected areas; some secondary diseases of open cultivation rose to the main disease, chives Botrytis is particularly prominent, the disease sporadic leek occurrence sporadic occurrence does not affect the yield and quality, but the protection of cultivated leek Has become an important disease in the provinces of North China and parts of the southern region. We surveyed from representative areas in Hebei Province from winter 1985 to spring 1986: about 4,500 acres of leeks in Shanhaiguan District of Qinhuangdao City, about 800 acres (including 1 to 2 years after harvest) The output value of 600-800 yuan loss, Baoding Xikang survey of 15 leek arch sheds shedding index of which 10 were more than 30%, three shed all rotting, Han Shanqu Handan Handan Leek nearly 400 acres of almost block disease , And some only cut a knife, after the knife rots, Xinji Qi Qi leek professional Township, leeks in the protection of the total cultivated land more than one-tenth, due to gray mold to reduce the output value of 30-40%. Therefore, the protection of gray chives botrytis occurrence, epidemic and prevention and control of the research has become an urgent need to address the issue of production. Little research on this disease is only reported by Li Mingyuan et al. To this end we in the winter of 1985 -1986 spring in Hebei Province shed shed leeks to conduct research and prevention and control tests.