Curing the old rough skin of fruit trees can effectively prevent the occurrence of rot and ring rot. It can eliminate a large number of fleas, germs, and eggs that overwinter in the old skin, reduce the damage in the coming year, and make the weak trees return to life, but in concrete Pay attention to the following 6 points when operating: First, the time to shave the rough skin can be carried out in the dormant period before the fruit defoliation to budding. Practice has proved that scraping skin in the early spring is better than winter, and it can ensure a robust tree vigor and make the tree safe for winter. At the same time, as many natural enemies start to move earlier than pests, in order to protect natural enemies, it is appropriate to postpone scraping before budding. Second, the old tree of the object, the premature death tree, and the old sapling. Third, the focus of the site is on the trunk and the base of the main branch. The diseased trunk should be completely and cleanly scraped. Fourth, deep bark scraping should grasp the principle of "Lulu is not white". It is better to have a red endothelium. Not showing red means that the shave is light, and the white shows that the shave is deep, the former is ineffective, and the latter is weakening the tree. Tree species, different ages, different degree of scraping skin, such as white dragon apples should be heavy, red Fuji apples should be light; old trees, premature aging trees should be heavy, deeper, early fruit trees should be shallow, lighter. Fifth, after the care and curettage, the affected part should be coated with thiophanate-methyl or 5 degree lime sulfur or whitening agent (lime: water: lime sulfur mixture: salt = 10:36-40:2:1-2) to prevent the invasion of bacteria. 6. Note that cold areas must be scraped in the early spring in order to prevent freezing damage. The rest of the rest of the area can be carried out. When pests in the orchard are severe, the protection of natural enemies must be considered. Except according to the first article, in winter, the old rough upper skins of the three main branches (with more pests and less natural enemies) can be scraped off in the winter, and can be buried or buried deeply; In the early spring of the following year, the rough skins below the middle of the three main branches and in the main trunk can be scraped off. The rough skin scraped off can be piled up near the orchard, and the rough skin can be burned or buried when the pests have not yet been active after the natural enemy emerges. Locks Accessories,Rod Control Locks,Window Seals,Sponge Rubber Tapes Ningbo Hengchieh Locking Technology Co., Ltd. , https://www.hengchieh.com