1、 Cause

Elm rotting liquid is mainly due to the wound caused by pruning, and then the tree liquid will flow out of the wound. If it is not treated in time, it will lead to more rotting liquid. When pruning elms, the cut is uneven, and the plant recovers slowly, resulting in a direct flow of liquid from the wound. If the wound is not treated in time, the wound will be infected with bacteria, which is difficult to heal, and the plant will die in serious cases. In addition, the rotten flow when elms are not pruned may be caused by pests

2、 How

1. If the wound is small and there is not much fluid flow, you can simply trim and disinfect, and then directly dry the wound. If there is dry curling around the wound, it indicates that the wound is about to heal

2. If the wound is large and the fluid flows more than once, you can use medicine to make the plant recover quickly. First, use plant ash to absorb the fluid at the wound, and then sprinkle a layer of plant ash on the wound. Or you can smear the wound with wound healing agent. After simple disinfection of the wound, then apply some wound healing agent. In addition, you can also apply Hongmei Su ointment on the wound, which will also be conducive to plant healing

3. If the elm rot is caused by pests, it needs to be treated symptomatically after identifying the cause according to the disease. Use medicine from the wormhole to kill pests. At the same time, it is also necessary to prevent the occurrence of other diseases and insect pests and reduce the incidence of elm SAP disease