The fruit tree whitening agent is a preparation prepared by mixing lime, vegetable oil, salt, etc., as a main component, and is mixed with a mixture of white and black paints. The whitening agent is applied differently depending on the function it plays and the purpose of whitening. Divided into many kinds, in the production of fruit trees according to the actual needs of configuration of different types of whitening agent can achieve a targeted, to achieve a multiplier effect. Whitening agent â— Kill lime and salt ingredients in the whitening agent of germs have the function of sterilization and disinfection, which can eliminate the various pathogenic bacteria that overwintered at the base of the trunk, and accelerate wound healing after whitening. â— Kill eggs Many eggs like wintering inside the cracks in the bark and inside the trunk, and whitening can effectively eliminate these eggs. â— Pests used to prevent pests in fruit trees generally prefer dark and filthy areas. They do not like white, clean areas. After the trunks have been coated with whitening agents, pests cannot dare to climb along the tree trunks. â— Prevent the animal's trunk from being whitened and prevent the animal from biting the bark. â— To prevent frost damage from entering winter and opening spring in the following year, there is a large temperature difference between day and night. By applying white, you can reflect enough sunlight and ultraviolet rays during the day to reduce the temperature difference between day and night at the base of the trunk and avoid frost damage. White-painted trees, because of the slow accumulation of temperature at the base of the trunk, often delay the sprouting and flowering of the trees, and can avoid frost damage caused by “cold winterâ€. â— After preventing sun-burning trunks from being painted white, you can reflect sunny sunlight and ultraviolet rays during the day, which can effectively reduce the occurrence of sunburn damage. Whitening time From the end of November to the middle of February the following year, the trunks can be painted white. During this period, the winter temperature is low, the cold air sinks, the trunk is most vulnerable to freezing, and some of the pests are hidden in the cracks of the trunk skin. The effect of whitening the trunk is better, which can significantly reduce the incidence of diseases and insect pests in the coming year, and reduce the amount of pest control work in the coming year. White parts The height of the painted white is 1 to 1.5 meters from the ground, with the emphasis on the white roots of the trunk, and the white, thick tree, diseased tree, and the south of the trunk should be emphasized. Ordinary branches, branches of the year do not white, so as not to burn the cortex. Type of whitening agent Whitening agent for the purpose of preventing freezing Oranges, sweet oranges, pomelo and other cold fruit trees, peach trees in the north of the Huaihe River, and fruit trees in low-lying orchards are vulnerable to cold damage. On winter clothes, an insulation layer was formed to increase the cold-resistant and anti-freezing ability of such fruit trees. Talc powder whitening agent: 0.5 kg of talcum powder, 0.5 kg of cornmeal or soybean flour, 10 kg of water is added and stirred well, and 0.2 kg of detergent powder can be added at the same time, which can increase the adhesion of whitening agent. Lime cement yellow mud whitening agent: 5 kilograms of water plus 2 kilograms of quick lime, after mixing well, pour 2 kilograms of cement and 1 kilogram of yellow mud in turn, and mix thoroughly to form a slurry. This type of whitening agent is resistant to rainwater erosion. It can be kept on the bark for a year without falling off, and it can also prevent the occurrence of infestation diseases. Whitening agent for pest control Before scraping white, the bark must be scraped within 50 cm above the root of the trunk. It is better for scraping and peeling of fruit trees aged over 10 years, and the old skin on the trunk and main branches is scraped off and re-scraped. Pear trees, apple trees, lightly scraped chestnuts, etc., peaches and apricots are not recommended to scrape, to prevent the occurrence of plastic injection. If a pest is found on a tree trunk or there are pests in the stem, the observed pests are killed first and then whitened. Lithosulfide mixture liquid: firstly melted thoroughly with 10 kg of water and 5 kg of quick lime, and stir well, then add 1 kg of yellow mud in order, and then stir and add 1 kg of lime sulfur with Baume degree of 11 degrees, and then add it. 0.5 kg of salt and vegetable oil, stir well. Lime and lime sulfur can kill pests and eggs that overwinter in the cracks in the bark. Salt can prevent the whitening agent from falling off and sticking. Lime and sulfur mixture whitening agent: 5 kg of quicklime and 0.3 kg of salt are first opened with 8 kg of hot water, stirred into a paste, and then 0.3 kg of vegetable oil, 0.5 kg of sulfur powder, 0.2 kg of bean flour or corn flour are added. Stir until uniform with the addition. Lime and sulfur powder can prevent frost and insect pests. Salt can infiltrate lime and sulfur powders into the trunk of the trunk to maintain moisture and prevent dry peeling. Vegetable oils and bean flour increase the adhesion of the whitening agent on the trunk. Anti-disease whitening agent Lime sulphate mixture: Open 0.5 kg of copper sulphate in 1 kg of hot water in a container, then turn 5 kg of quick lime and 5 kg of water into milk of lime in a container, and finally pour the dissolved copper sulfate solution into Into the lime milk container, stir well. Limestone sulfur residue residue whitening agent: 5 kg of lime and 0.5 kg of lime sulfur residue plus 25 kg of water, plus 0.1 kg of salt, stir well. White note 1, whitening agent should be used with the distribution, should not be more equipped, according to the whitening task configuration whitening agent amount, with the whitening agent can not be put for a long time. 2. In the process of configuring the whitening agent, each time the ingredients are added, it should be fully stirred to make it uniform so that the whitening agent can be evenly adhered to the trunk. 3, in the orchard before whitening, should be the first winter pruning of the orchard, and then cut the branches together to burn, the trunk on the fracture, frozen cracks and other wounded parts wrapped with plastic film. 4. Observe whether or not harmful insects have penetrated into the trunk. If pests invade, they should use cotton or cotton cloth to dip and kill the pests. Industrial Applications Nitrile Gloves Industrial Applications Nitrile Gloves,Industrial Nitrile Gloves,Food Grade Disposable Gloves,Food Grade Nitrile Gloves Puyang Linshi Medical Supplies Co., Ltd. , https://www.linshihealths.com