１．选用抗病性强的杜梨作砧木进行高接换种，嫁接高度不低于４０ｃｍ。２．合理施肥灌水，保持田园清洁，清除园内杂草和病叶，并将其深埋或带出园外烧毁。３．中耕除草，降低土壤湿度，防治地下害虫，减少伤口、切断病源。４．对发病株，挖出病根部位，刮除病班。用０．... 1. Selection of pears with strong resistance to rootstocks for high replacement, grafting height of not less than 40cm. 2. Rational fertilization and irrigation, to keep the garden clean, remove the weeds and diseased leaves, and buried or taken out of the park burned. 3. Cultivation and weeding, reduce soil moisture, prevent underground pests, reduce the wound, cut off the source. 4. On the diseased plants, dug out the root cause, curettage disease classes. With 0. ...