Why do trees have to be painted white? What is the use of white paint under the tree?

It can improve the survival rate of trees. Whitening of the trunk refers to the trunk being artificially brushed or sprayed with a white "protective film".

The main ingredient of the whitening agent is lime milk, as well as salt, soybean flour, stone sulfur mixture, and the plant is painted with whitening agent in winter, which has two main purposes:

On the one hand, cold and frost prevention, on the other hand, pest prevention, winter day and night temperature difference is large, after the plant is whitewashed, white can reflect the sunlight and various radiation during the day, to avoid the temperature in the plant body is too high, greatly weakening the temperature difference between day and night, to avoid the plant from being hurt by sudden temperature change, in addition to the autumn and early winter, many insects like to lay eggs in the cracks of the old bark, Guo Dong bleach Dun many pests have to kill the left and right trees, painted white will reflect the light, pedestrians and drivers at night can see the road more clearly.

The trunk is painted with white ash, not white paint.

The trunk is brushed with white ash for the effect:

1. Sterilization and disinfection.

Trees can play a role in sterilization and disinfection, usually in the early winter to the trees white ash, after the winter cooling bacteria will hide in the cracks of the trees, and so on the next spring after the temperature rises after the germs begin to move, begin to harm the trees. If you brush white ash in winter, dilute it with lime powder and water and apply it to the skin of the tree, so that it can kill the germs and play the role of sterilization and disinfection.

2. Thermal insulation and anti-freezing.

Brush the trees with white ash can also play the role of heat preservation and anti-freezing, the temperature is relatively low in winter, usually around 10 during the day, if the bark is dark, it will absorb light and heat, which will increase the heat in the tree, and so on at night will cool down, the temperature is generally below 10, or even below 0, so that the branches of the tree are cracked due to the large temperature difference, and are easy to freeze. Brushing white ash absorbs less heat during the day, and even if it cools down at night, the temperature difference between day and night is not too large, thus protecting the trees and promoting safe wintering.

3. Pest control.

White-plastering trees also prevents insect pests. White ash is toxic to various insect pests, and after brushing, it can reduce the chance of insect infestation, virtually protect trees, and also avoid animal bites. When applying, it is usually applied from the base of the tree upwards, about to a meter height.

Afraid of passers-by falling, it has a reflective effect.

Brushing white paint under the tree has the effect of sterilization, prevention of pest attack, sun protection, frost protection, and aesthetic effects.

1.The role of sun protection and frost protection:A layer of white lacquer, due to its white appearance, reflects sunlight and reduces solar radiation.

The effect is to reduce the absorption of solar energy by the plant and prevent it from being burned by the sun. Another layer of white paint can also protect the skin layer, reduce the temperature difference between day and night, and prevent frost damage.

2.It plays the role of sterilization and insecticide:The composition of white lacquer generally contains sulfur and copper sulfate.

Stone sulfur mixture, etc., sulfur or stone sulfur mixture free sulfur elements have high activity, can enter the insect body and act on the respiratory system.

This leads to the death of insects;White lacquer is generally alkaline, which can dissolve the wax of the upper epidermis of insects and the propagules of fungi, so as to achieve the effect of pest control;White lacquer can inhibit the dissimilation of live bacteria.

So as to achieve the effect of inhibiting bacterial live infection.

3.It has an aesthetic effect:The rows of trees on both sides of the sidewalk are painted with white paint to make them even more neat and beautiful.

Cold-proof, sterilization, anti-cracking. Cold-proof, can effectively reflect sunlight.

It plays the role of anti-freeze. We look like a thin layer of white lacquer, which is a thick down jacket for trees. Sterilization, winter is coming, such as gray mold, dry rot fungus, sclerotinia fungus and many other bacteria and fungi are parasitic under the bark of the winter, the whitening agent has a strong sterilization ability, can effectively kill the overwintering bacteria.

Crack-proof, in winter, the temperature is very low at night, and during the day, the sun shines, the temperature rises, and the trunk itself is black-brown, easy to absorb heat, and the temperature of the trunk rises quickly. In this way, repeated cold and hot are easy to freeze and crack the trunk. Especially large trees, the trunk is thick, dark in color, and the tissue toughness is relatively poor, so it is more likely to crack.

Introduction to whitening the trunk:Whitening of the trunk means that the trunk has been brushed with a layer of white liquid by the workers. The trunk is coated with lime water.

After creating a white dress, it can reflect 10% of the sunlight back, so that the heat absorption is reduced, and the trunk will not freeze and crack due to the huge temperature difference between day and night, and it also has the effect of sterilization and insect prevention. A unique sight in the city.

Paint the bottom of the tree with white paint to prevent ants from damaging the tree, and if you paint white paint, it will look more uniform and beautiful.

It is lime, and the trunk of the roadside tree is whitened with lime mortar in winter and serves two purposes. First, anti-freezing, after whitening with lime mortar, the sunlight can be reflected, which can reduce the temperature difference between day and night of the trunk and reduce the frost damage of trees. For young trees that are not cold-tolerant, the main trunk needs to be wrapped with straw to further enhance its cold-proof ability.

The second is to prevent insect pests, in the lime slurry generally to add the corresponding liquid, in addition to the lime slurry itself also has a bactericidal effect, which can effectively prevent insect pests.

It is lime, and the trunk of the roadside tree is whitened with lime mortar in winter and serves two purposes. First, anti-freezing, after whitening with lime mortar, the sunlight can be reflected, which can reduce the temperature difference between day and night of the trunk and reduce the frost damage of trees. For young trees that are not cold-tolerant, the main trunk needs to be wrapped with straw to further enhance its cold-proof ability.

The second is to prevent insect pests, in the lime slurry generally to add the corresponding liquid, in addition to the lime slurry itself also has a bactericidal effect, which can effectively prevent insect pests.

It is lime, and the trunk of the roadside tree is whitened with lime mortar in winter and serves two purposes. First, anti-freezing, after whitening with lime mortar, the sunlight can be reflected, which can reduce the temperature difference between day and night of the trunk and reduce the frost damage of trees. For young trees that are not cold-tolerant, the main trunk needs to be wrapped with straw to further enhance its cold-proof ability.

The second is to prevent insect pests, in the lime slurry generally to add the corresponding liquid, in addition to the lime slurry itself also has a bactericidal effect, which can effectively prevent insect pests.

Insecticide and insect control: The white substance contains insecticides, which can prevent pests in the soil from climbing on the plants, and also prevent animals such as sheep from eating the bark.

Anti-frost damage: After applying white substance, it can improve the cold resistance of the trunk and reduce the occurrence of frost damage.

Accident-proof: The white substance can reflect the lights and prevent the vehicle from hitting the tree trunk.

White paint from the ground trunk can effectively prevent tree disease, because the white paint contains antibacterial components to protect the trunk from breeding bacteria, and the components in the white paint can prevent insects from living and laying eggs on the trunk, so as to avoid insect pests from harming the trunk and ensure the healthy growth of trees.

The first is insecticide, there are insecticides in the white paint, the second is anti-freezing, and the third is to prevent accidents by improving the cold resistance of the trunk.

The underside of the tree is painted with white paint, the first is to prevent pests from climbing up the tree from the ground, and the other is to divide the tree!

1.Keep the tree warm and freeze-proof.

2.Pest control.

This is to prevent termites from invading trees.

Why do you paint white under the big tree, in fact, it is not the medicine that puts insects in U71, and it is not easy to get sick after it is distributed.

There are too many functions for this, the first one is to prevent winter insects from parasitic on the trunk and sterilize them. Second, to prevent trees from frostbite in winter and early spring. Third, the role of aesthetics.

The trees are painted with lime instead of white paint, and the air humidity is high in winter, and the lime heats up when exposed to water, which can play a role in keeping warm. In addition, lime also has the effect of sterilization and insect control, which can prevent the trunk from being eroded by pests.

The reason why the tree should be painted with white paint is actually to prevent insect pests and also have a certain warmth function.

The reason why I choose to paint white paint is for aesthetics, and the other is that it can play a role in disease prevention.

These white lacquers are made of lime with sulfur, salt, etc., and after the trunk is painted, one is anti-freezing and the other is insect-proof, and the greening department mainly uses white paint to paint the street trees to "keep warm" the trees.

In addition, for some "old" famous trees and ancient trees, Du Ying, Tie Shu, etc. are wrapped with straw rope or plastic sheeting to "dress" the trees to protect against the cold.

The underside of the trees is not painted, as far as I know, it is lime mortar, which is mainly used to imitate insects eating trees.

The specific reasons why the tree is painted with white lacquer are as follows:

1. Pest control. The tree is coated with a white coat to protect against insect pests. Generally, the trees on both sides of the sidewalk will be coated with a layer of white paint, and the paint contains some insect repellent substances, which can be applied to the root of the tree to prevent reptile pests from crawling from the soil to the trunk, thereby eating the shoots and leaves growing on the trees, affecting the growth of the plant.

2. Anti-frostbite. Applying a layer of white to the tree can also prevent frostbite on the tree. Generally, the white paint is applied in winter, and the skin of the tree can breathe, which is easy to sell frostbite, but after applying the white dantong paint, the roots of the plant seem to be covered with a protective film, so that the plant is protected from frostbite.

3. Eye-catching reflection. Applying a layer of white paint to the tree can also prevent some traffic accidents. Because white is a more eye-catching color, it can be seen clearly in the daytime, and when the white is closed at night, there will be a reflective phenomenon after the illumination of the headlights, so that it can provide a tree in front of the driver, so as to avoid the vehicle directly hitting it.

4. Neat and good-looking. Applying a layer of white paint to a tree also has a neat and beautiful use. There are many kinds of trees planted on both sides of the sidewalk, so the color and texture of the bark are also different, and the trunk is painted with a layer of white paint, which is more neat and beautiful, just like a student wearing a school uniform.