Due to pruning of winter and spring, mechanical damage, human and animal damage, frost damage, wind damage, etc., seedling wounds must be promptly nursed to reduce tree moisture loss and prevent freezing, to avoid infection, promote wound healing and restore vigour. Take care of the following methods: First, remove. For dead branches, they can be sawn or cut from near the injury site. Branches with light wounds, frost damage, and wind damage should be cut off at a clear boundary between life and death. The incision should be smooth. After the wound is trimmed, a protective agent or wax should be applied in a timely manner to facilitate healing and germination of new shoots. Second, scrape. Large branches of dry wounds or rot disease, early onset, should promptly use a knife to scrape the bark of the disease department, deep to the xylem, it is best to scrape to a healthy part of the wound to stimulate early healing. After brushing, evenly apply 75% alcohol or 1% to 3% potassium permanganate solution with a brush. You can also apply iodine to disinfect and then apply wax or a protective agent. One of the commonly used protective agents is protective wax. The method of preparation is to put 0.5 kg of animal oil into the pan to warm the fire first, then put 2.5 kg of rosin and 1.5 kg of yellow wax into the pan, stir and melt continuously, and then cool and serve. When the fire melts, apply a brush to the wound. The other is soya bean copper agent. One kilogram each of copper sulfate and slaked lime was ground to a fine powder, 1 kg of soybean oil was poured into a pot and boiled, and then copper sulfate and slaked lime were added to the oil and stirred, and then they were used after cooling. Third, exterminate insects. Some seedling branches are left with many wormholes and infestations by the genus of Giardia and Cerambyceps, and they can use a sharp knife to scrape off the rough skin from the harmed area, and apply 100 times 40% omethoate to add a small amount of kerosene poison after scraping. Kill larvae. Apply a protective agent or wax to the scraped wound to prompt the wound to heal. For the deeper pests of maggots, cotton or rag 80% dichlorvos 100 times solution, or 50% methamidophos 100 times solution into the wormhole to kill larvae, can also be diluted several times with the above-mentioned agents. After injection into the wormhole with a syringe and sealing the wormhole with wet mud, good control effects can be obtained. Fourth, tied and tied. For branches that have been blown or severely injured by strong winds, the semi-split branches can be hoisted or lifted, restored to their original shape, cleaned of wound debris, tied with ropes or wires, or tied with a wooden board to make the cracks dense. Seamlessly, the outside is tightly wrapped with plastic film and can be tied after six months. Fifth, tree hole repair. When the wound has become a tree hole, it should be repaired in time to prevent the tree hole from continuing to expand and promote restoration of tree vigor. First of all, the rot inside the hole is completely removed, the necrotic tissue at the edge of the hole is removed, the drug is disinfected, and the mixture is filled with cement and small stones in a ratio of 1:3. It can also be used for small tree holes, which can be filled with wooden studs or wedged with 30% sawdust.