冬枣 (又称沾化冬枣 )是环渤海湾地区特有的珍稀鲜食枣类资源 ,主产于山东省沾化县、无棣县、乐陵县及河北省黄骅县等地 ,目前仅山东沾化县栽培面积已达 1万ｈｍ2 ,是当地农民主要经济来源。但部分产区因管理粗放 ,导致病虫害发生严重 ,造成减产减收。为此 ,笔者自1996年开始在 Dong jujube (also known as Zhanhuadongzao) is a rare ring-shaped jujube resources in the Bohai Bay region, and is mainly produced in Zhanhua County, Wudi County, Leling County, Hebei Province and Huanghua County in Shandong Province. At present, only Shandong Province Huaxian cultivated area has reached 10,000 hm2, is the main source of income for local farmers. However, due to the extensive management of some producing areas, pests and diseases have become serious, resulting in reduced production and reduced receipts. To this end, the author began in 1996