我市栽培的桃树为早、中熟品种。主要病虫害有缩叶病、细菌性穿孔病、红颈天牛、桃蛀螟、蚜虫等。过去由于防治不力 ,病虫害发生严重 ,树势衰弱 ,产量低 ,红颈天牛为害的甚致死亡。在蚜虫、红蜘蛛的防治上 ,频繁使用剧毒农药 ,不但成本高 ,且残毒量也高。近年来我们采用了综合 City of peach cultivation for the early, medium-maturing varieties. The main diseases and pests are reduced leaf disease, bacterial perforation, red-necked Beef, Peach moth, aphids and so on. In the past due to poor prevention and control, pests and diseases serious, weak bark, low yield, Red-necked Beef Cattle even death. In aphids, spider mite prevention and control, the frequent use of highly toxic pesticides, not only high cost, and the residue is also high. In recent years we have adopted synthesis