Fruit tree trunks are white
1. The whitening of the trunk of the fruit tree is mainly to prevent the fruit trees from overwintering and protecting the fruit trees. Therefore, the whitening work must be completed before the cold air intrusion. The whitening is late, the pests have been transferred up and down, and there is no barrier effect, so it is generally suitable for 11 to 12 months. 2. The whitening agent should be formulated in a certain proportion. The whitening agent is generally composed of quicklime, salt, sulfur (stone sulphur) and water. Lime and sulfur can prevent freezing, anti-burn, disease prevention and insecticide. The stone sulphur mixture has a bactericidal effect. The salt helps the lime to penetrate into the bark, maintains moisture and prevents the lime cracking and peeling. Therefore, the preparation of the whitening agent requires lime and salt. And sulphur or stone sulphur mixture these raw materials. Generally, 100 kg of water is added with 20 to 30 kg of quicklime, 2 to 3 kg of sulfur powder, and 1 to 2 kg of salt. The lime is first opened, and then the sulfur powder and salt are evenly mixed, and then applied to the base of the trunk. 3. Before using the whitening agent, it is best to scrape the parasites such as coarse skin and moss on the bark to block the old tree hole. The bark seam is a good place for wintering of insects such as scale insects. It should also be scraped clean, and then apply whitening agent on the scraped area. If the harmful insects are found on the branches during the painting process, the pests should be killed and then whitened. 4. The height of whitening should be determined according to the size of the tree. Generally, the white height is 0.6 to 1.5 meters from the ground. The brushing height is consistent and beautiful. 5. The whitening agent can not be used with insecticides or fungicides, although some pesticides, fungicides and whitening agents have the same goal, in order to prevent pests and diseases and kill pests, but whitening agents It is an alkaline substance, and most of the insecticides and bactericidal properties are acidic. In the whitening agent, the insecticide or fungicide is blended, which is easy to cause acid-base neutralization and does not have insecticidal and bactericidal effects. 6. The whitening standard generally makes the concentration of white coating not spread down on the trunk, does not stick to the sputum, does not curl after drying, and does not fall off. When painting white, it must be even, especially in the bark gaps, holes, tree shrews, etc., to avoid brushing and brushing. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone YT-H706 YT-H706 Shenzhen Sunshine Technology Co.,Ltd , https://www.shenzhenyatwin.com