苹果树腐烂病,是苹果产区危害最大的病害。解放后采用割除病疤,再涂石硫合剂、波尔多液、硫磺水、蓝矾水、碱水、升汞液等药,虽取得一定防治效果,但重犯率仍达60%左右。无产阶级文化大革命中,辽宁复县贫下中农用500—1000单位不同剂型内疗素,防治腐烂病效果好。1971年山东昌潍地区数十个果园用内疗素防治苹果树腐烂病,收到了良好效果,一半以上治愈率达91.7%,而石硫合剂复发率为45.5%,升汞液复 Apple tree rot disease, is the most harmful diseases in the apple producing areas. After the liberation by cutting off the scar, and then coated lime sulfur mixture, Bordeaux mixture, sulfur water, blue alum water, alkali water, mercuric chloride and other drugs, although some control effect, but the recidivism rate is still up to 60%. In the Great Proletarian Cultural Revolution, 500-1000 units of inferior middle peasants in Fuxian County of Liaoning Province have different dosage forms of endothelin, and the effect of preventing and curing rot is good. In 1971, dozens of orchards in Changwei, Shandong, used endothelin to control apple tree rot disease and received good results. More than half of the cure rates were 91.7%, while the recovery rate of lime sulfur mixture was 45.5%. Mercuric chloride