Because of the need for plastic trimming and the damage of certain branches and diseases, the fruit trees need to artificially cut off some thick branches and leave larger wounds every winter. In order to avoid wound infections and to facilitate healing of the wound, the cortex and xylem around the wound must be flattened with a sharp cutting knife, and then used from Baume's 5 to 1 degree lime sulfur or 1% to 2% copper sulfate solution. 40% of Formicillin arsenic can be sterilized and then applied with a protective agent. Commonly used fruit tree wound protection agents and preparation methods are: Solid wax was prepared with 4 parts of rosin and 1-2 parts of beeswax. The light is used to turn the rosin off with warm water, and the beeswax and animal fleas are released. After the mixture is dissolved, it is poured into cold water and cooled by hand. When used, heat and melt, then apply the wound with a brush. 2. Liquid wax was prepared using 6 parts of rosin, 2 parts of animal oil, 2 parts of alcohol, and 1 part of pine knot. First warm up the rosin and animal oil at the same time, stir well and then leave the fire to cool, then slowly add wine sticky, turpentine, stir well bottling sealed and spare. 3. 6 parts of cow dung used in cow dung mortar, 8 parts of slaked lime and 8 kinds of grass ash, and 1 part of fine river sand. The water can be prepared into a paste and ready for use. 4. Rosin oil mixture was prepared with 1 part of rosin and 1 part of clear oil (novolac). First heat the oil to boiling, then add the rosin powder and mix well. In winter, you should add more oil as appropriate. In hot weather, add more rosin. 5. Soybean oil copper agent is prepared with 1 part each of soybean oil, copper sulfate and slaked lime. The copper sulfate and hydrated lime were first ground to a fine powder, and then the soybean oil was poured into a pot and boiled until boiled. The copper sulfate and slaked lime were added to the oil, and the mixture was fully stirred and used after cooling.
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