Whitening effect Kill bacteria. The quicklime and salt ingredients in the whitening agent all have the function of sterilization, which can eliminate the various pathogenic bacteria that overwintered at the base of the trunk. Kill eggs. Many eggs prefer to survive in the gaps in the bark, in the trunk of the tree, or in the stems, and white eggs can destroy the eggs. Control pests. Pests that harm fruit trees generally prefer dark, dirty places, and do not like white, clean places. After the trunk is painted white, pests are afraid to climb along the trunk to the tree. Prevent freezing damage. After entering the winter, the spring and the following spring, the temperature difference between day and night is great. 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€. Prevent sunburn. After the tree trunk is painted white, it can reflect out the bright sunshine and ultraviolet rays during the day, effectively reducing 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 application of white to the trunk can achieve a targeted effect and a multiplier effect, reduce the occurrence of diseases and insect pests in the coming year, and reduce the workload of pest control. White parts The height of the painted white is 1 to 1.5 meters from the ground, with emphasis on the white stems of the stems of the trees. The incomplete trees, diseased trees, and the south side of the trunks should be painted heavily. Ordinary branches, branches of the year do not white, so as not to burn the cortex. Type of whitening agent One is a whitening agent for the purpose of preventing freezing damage. The peach trees in the north of the Huaihe River and the fruit trees in the low-lying orchard are vulnerable to frost damage. The trunks of these fruit trees are coated with whitening agents, which are equivalent to putting them on winter clothes to form insulation layers and increase their ability to resist freezing and cold. Talc powder whitening agents can be formulated. The second is whitening agents for the purpose of pest control. Before scraping white, scrape off bark within 50 centimeters above the rhizome of the trunk. The effect is better for scraping and peeling of fruit trees over 10 years old. The old skin on the trunk and main branch is scraped off and the pears are severely scraped. Trees, apple trees, chestnuts, etc., peach, plum, apricot trees are not recommended to scrape, to prevent the occurrence of plastic injection. Lime sulfur can be formulated. Third, it is a whitening agent for the purpose of preventing diseases. The frozen fruit trees are apt to suffer from sunburn and cracking, causing resinous disease. The trunks painted white can reflect sunlight, reduce the trunk temperature during the day, and prevent sunburn caused by bark cracking. Lime and copper sulphate mixtures can be formulated. Precautions In the process of formulating the whitening agent, each additional ingredient should be fully stirred and uniform so that the whitening agent can adhere evenly to the trunk. Before fruit trees are painted white, they should be trimmed, and the cut branches should be concentrated and burned. Wounded and frozen cracks on the trunk should be wrapped in plastic film. Observe whether any harmful insects have entered the tree trunk. If there is any, you should use cotton or cotton cloth to dip the insects and kill them before applying the whitening. When brushing, use a brush or a straw to draw the whitening agent. Select the base of the main branch and the main trunk to be painted white on a sunny day. After the old trees are updated, in order to prevent the sun, the whitening position should be increased, or the whole plant should be whitened. Sight Glass,Sanitary Welding Sight Glasses,Tube Welding Sight Glasses,Sanitary Sight Glass Wenzhou Gaoya Light Industry Machinery Co.,ltd. , https://www.hongyafitting.com
Fruit trees are whitening and have fewer pests and diseases
The fruit tree whitening agent is divided into many kinds depending on the role it plays and the purpose of whitening. The production of different types of whitening agents can be targeted according to the actual needs and can achieve a multiplier effect.