“不脱酚洗油”是煤焦化过程中一种中间产物,各钢铁厂、焦化厂、煤气公司均有生产。原中国农业科学院果树所自1969年11月以来,用“不脱酚洗油”先后在辽宁、黑龙江、河北、陕西等省进行多点试验,在较大面积上推广治疗苹果树腐烂病,取得了良好的效果。一般当年病疤治疗效果在90%以上,第二年的效果也 “Non-phenol degreasing ” is an intermediate product in the process of coal coking, the steel mills, coking plants, gas companies have production. The original Chinese Academy of Agricultural Sciences fruit trees since November 1969, with “non-phenol-free wash oil,” has in Liaoning, Heilongjiang, Hebei, Shaanxi and other provinces to conduct more trials in a larger area to promote the treatment of apple tree rot ,got a good result. The general treatment effect of the year scar in more than 90%, the second year of the results also