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葡萄是我县一大宗特产,也是群众治穷致富的一条主要门路。现已种植面积2万余亩,产量已达900余万斤,由于我县地处秦岭的东南麓,气候温和,降雨量偏多,加之多年来群众对葡萄病害防治缺乏明确的认识,园地管理粗放,以致造成葡萄各种病害在丹凤的猖獗发生。为了认真搞好病害的防治工作,摸清我县葡萄病害发生的种类和危害程度,找出发病的主要原因,掌握各种病害在我县的发病规律,为今后葡萄病害防治打下良好的基础。我们于一九八七年七月一八月对我县的八个葡萄基地乡(镇)采取了分品种、分地块、分管理水平、分不同的海拔高度随机抽样的方法进行了葡萄病害调查工作。现将调查情况汇报如下:
Grapes are a large number of specialty products in our county, but also a rule, the masses to become rich and a major road. Now planting more than 20,000 acres, the output has reached 900 kilograms, due to the county is located in the southeastern Qinling Mountains, mild climate, excessive rainfall, coupled with the masses over the years the lack of a clear understanding of grape disease prevention and control, garden management Extensive, resulting in a variety of grape diseases rampant in Danfeng. In order to conscientiously do a good job of disease prevention and control work to find out the types and hazards of grape diseases in our county to identify the main causes of disease and grasp the incidence of various diseases in our county rules for the prevention and control of grape diseases in the future and lay a good foundation. In July and August 1987, we conducted a survey on eight grape-based townships (towns) in our county by species, plots, management levels and random sampling at different altitudes for grape diseases Investigation work. Now report the investigation as follows: