危害果树根部的病害较多,往往对果树造成毁灭性损失。而在果树管理中,许多果农对果树枝干梢叶的病害防治比较留心,而忽略对根部病害的防治,导致不应当的损失。其实,根部病害的防治与地上部分的病害防治同等重要。现将危害果树根部的主要病害发生及防治方法介绍如下:一、主要根部病害的症状1.根腐病由致病细菌侵染危害所致,根部受害后形成大小如核桃、小于豆粒状肿瘤,受害果树植株生长不良,植株矮小、叶片黄化、果实变小、树 Damage to the roots of fruit trees is more, often causing devastating damage to the trees. In the management of fruit trees, many fruit growers pay more attention to the disease prevention and control of the branches and shoots of the fruit branches, while ignoring the prevention and treatment of the root diseases, resulting in the loss should not be caused. In fact, the prevention and treatment of root diseases and ground disease prevention and treatment is equally important. The main diseases that will endanger the root of fruit trees and prevention and treatment methods are as follows: First, the symptoms of the main root disease 1. Root rot disease caused by pathogenic bacteria infection caused by the root after the formation of victims such as walnut size, less than bean granular tumor, Damaged fruit tree plants poor growth, plant dwarf, yellow leaves, fruits become smaller, trees