Primarily a disease of the young trees, its onset begins during extended periods of high soil moisture. Cankers develop on the bark below the ground; infected trees appear pale after leafing. If the cankers girdle the trunk, the tree will eventually die. There is no satisfactory control measure once the disease appears. However, it can be prevented by planting the trees at the same depth at which they grew in the nursery or even deeper (graft union should be kept out 30–45 cm above the soil level). Ensuring proper drainage in the tree basins is crucial for preventing the outbreak of the disease.
Why crown rot disease occurs in plum and how it can be prevented?
