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枣是祖国栽培历史悠久的果树之一,分布非常广闊,从祖国的南部到北部,几乎有二十多个省都有它的栽培。据1957年的統計,全国枣树面积占全国果树栽培总面积的26.2%。枣树管理省工,病虫害少,素有“铁稈庄稼”之称。但枣疯病发生較普遍,据山东邹县1955年調查,五区几乎全部发病,六区有70—80%发病;河北密云县1958年发病达24.8%,昌黎县1950—1953年发病达50%;
Jujube is one of the fruit trees with a long history of cultivation in the motherland. It has a very wide distribution. From the southern part of the motherland to the northern part, jujube has its cultivation in almost 20 provinces. According to the statistics of 1957, the area of jujube tree in China accounted for 26.2% of the total area cultivated by fruit trees nationwide. Jujube management provincial workers, pests and diseases less, known as “straw crop” said. However, jujube bouts are more common. According to a survey conducted in 1955 in Zou County, Shandong Province, almost all of the five districts were affected and 70-80% of the districts were affected. In Miyun County, Hebei Province, incidence was 24.8% in 1958 and 50% in Changli County from 1950 to 1953 %;