果树根部病害在多雨年份常有发生,果树受害后,轻的出现早期落叶、落果,生长不良,重者整株死亡,给果农带来重大经济损失。根部病害发生的原因主要是:1.因土壤环境不适宜,如土壤积水、地下水位高。2.根系受到有害生物的侵染,如某些病原真菌、细菌。总之,涝害是诱导根 The root diseases of fruit trees often occur in the rainy years. After the fruit trees are damaged, there are light early deciduous, deciduous, and poor growth. The whole plant will die, which will bring significant economic losses to the farmers. The root causes of diseases are mainly: 1 due to improper soil environment, such as soil water, groundwater level is high. 2. Roots are infected by pests, such as some pathogenic fungi, bacteria. In short, waterlogging is induced root