First of all, the occurrence of rot disease is caused by many reasons. Due to excessive annual production, large-element fertilizers are applied underground in successive years, and the soil structure is destroyed, resulting in severe soil compaction and poor air permeability, which changes the original nutrient conditions of the soil. Loss of balance in trace elements throughout the country has disrupted the normal absorption of various elements and nutrients by the root system. Coupled with heavy production, the tree has been weakening year by year, losing its resistance and leading to various diseases. There are also some fruit growers who randomly throw scraped-off rot leftovers to exacerbate the spread of rot. Second, prevention of rot disease should fundamentally solve the problem by increasing the organic fertilizer application to fruit trees, restoring tree vigor as soon as possible, increasing the intrinsic quality of the soil, and creating good growth conditions for the root system. Spring nourishment, can be used formula nutrient solution (a bucket of blood + 5 kg of water + 2 bottles love more + 2 bottles of Kangpei 2) dry, to the tree for nutritional supplements, on the leaf, flowering, long branches have a certain Synergies. Once again, seize the peak period of disease to strengthen the control of the rot of the medicine. There are two peaks of expansion during the year, that is, from March to April and from August to September, the spring is heavier and the autumn is lighter. The strong prevalence of tree vigor is low, and the incidence of weak trees, early leaves, and large amounts of results is heavier. Therefore, controlling the occurrence and spread of rot in the best time is the most effective. Rushan Jinguo Food Co., Ltd , https://www.jinguofood.cn