丹东地处鸭绿江入海口(黄海)是中国最大的边境城市,与朝鲜隔江相望,境外危险性植物病虫草害新品种随着经济往来的增加大量侵入我市。同时,由于丹东市降雨多、日照少、冬季温度高,这些病虫害新品种得以在我市生存并繁衍起来,并以鸭绿江口为跳板向全国扩散,给农业生产造成极大的损失。 Dandong is located in the Yalu River estuary (Yellow Sea) is China's largest border city, and North Korea across the river, the new plant outside the dangerous plant diseases and insect pests with a large number of economic exchanges invaded the city. At the same time, due to more rainfall in Dandong, less sunshine and high winter temperatures, the new pests and diseases have survived and multiplied in our city and spread to the whole country with the Yalu River estuary as a springboard, causing great losses to agricultural production.