烟台市是全国苹果主要产区，栽培面积达１３万ｈｍ２，年产量１９０余万ｔ。近年来，由于品种结构、栽培管理及防治方法的改变，苹果园主要病虫发生种类及为害程度均出现了明显变化。因此，研究分析其发生动态，确立综合防治对策，对控制病虫为害，确保苹果优质、高产、稳... Yantai is a major apple producing area in the country with cultivated area of ​​130,000 hm2 and annual production of more than 1.9 million tons. In recent years, due to the variety of the structure, cultivation and management and prevention and control methods change, apple orchard major pest occurrence types and degree of harm have shown significant changes. Therefore, research and analysis of its occurrence dynamic, establish comprehensive prevention and control measures, to control pests and diseases, to ensure that Apple’s high quality, high yield, stable ...