Why whitewash the tree? Why do you want to paint the underside of the tree with white paint?

The main ingredients of white paint are lime milk, salt, soybean flour and stone sulfur mixture, all of which are mixed together to become a white "wrapping layer" painted on the trunk. When making white paint, water should be added in a certain proportion, then stirred evenly, and finally a small amount of pesticides should be added, so that the white paint is made, and the whole production process is relatively simple. It should be noted that protective measures such as gloves need to be worn during the process of making white paint.

It does the following:

1. Sterilization. The composition of white lacquer contains lime, which has a certain bactericidal effect, which can kill the bacteria parasitic on the trunk and is conducive to the better growth of roadside trees.

2. Prevent pests and diseases.

White lacquer contains pharmaceutical ingredients that can protect roadside trees from pests and diseases in winter, and the effect is relatively obvious.

3. Prevent frostbite.

White paint can reflect sunlight, avoid excessive temperature in the plant, reduce the temperature difference between day and night, so that the plant can grow healthily at a suitable temperature.

4. Neat and beautiful.

It will be more beautiful to paint white paint uniformly, and the bottom of the tree will be neatly painted white, and it will look beautiful.

The main function is to prevent pests and diseases. It is mainly used in the north, and the time of use is before the beginning of autumn and winter.

The principle is as follows: many insect pests on trees will not survive the northern winter by hard resistance, and will freeze to death, so in the long evolutionary process, a strategy has gradually evolved, that is, before the arrival of winter, the tree burrows into the soil to make a cocoon, and then climbs the tree again to do evil. The main material for whitening is lime (alkaline), and insecticides are added to brush about 1 meter above the ground to the trunk of the tree, and the insect pests on the trees below and above are killed by contact.

In addition, the alkalinity of lime also has a certain killing effect on viruses, bacteria and microorganisms that harm trees, but it is limited to the whitewashed area and is small compared to the whole tree, so this effect should not be the main one.

Whitening the tree is to disinfect, and the main ingredient of the white liquid is calcium hydroxide to control pests and diseases on the tree.

On the one hand, whitewashing can play the role of sterilization and insect control, and on the other hand, it can play a role in anti-freezing in winter.

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, sclerot fungus and many other bacteria and fungi are parasitic under the bark of the winter, whitening agent has a strong sterilization ability, can effectively kill overwintering bacteria.

Crack-proof, in winter, the temperature is very low at night, and during the day, the temperature rises due to the exposure of sunlight, and the trunk itself is black-brown, which is 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.

Generally, there are two methods for the configuration of whitening agent, one is the traditional formula, which is generated by high-temperature boiling, which is more difficult to produce and more polluted, but generally does not contain glue, has strong safety for trees, has a better protective effect, and has a better sterilization and insect control effect, and is usually used more in fruit trees.

Another production method is to screen and purify raw materials, process and mix various ingredients, and stir evenly to coat the powder whitening agent, which needs to be mixed with water and stirred evenly when used. The cost is relatively low, and it is used more in greening trees, in order to increase the adhesion capacity, you can also add part of the glue powder by yourself, pay attention to the high glue content, although the adhesion time is long, but it affects the growth of the tree, and it is added cautiously as needed.

Precautions for whitening trees:

1. The whitening agent for fruit trees should be used with the mixture, and should not be put for a long time.

2. When using, the whitening agent should be fully stirred to facilitate brushing and make the whitening agent stick tightly to the trunk.

3. Before using the whitening agent, it is best to cut off the diseased branches, weak branches, aging branches and over-dense branches of the forest garden street trees with pruning shears, and then collect them and burn them, and wrap the cracked and frozen cracks with plastic film.

4. In the process of careful inspection, if it is found that pests have been eaten on the branches, it is necessary to kill the pests with cotton soaking and then whiten them.

5. When brushing, use a brush or grass handle to dip the whitening agent, choose a sunny day to evenly coat the base of the main branch and the main trunk, and the whitening height is mainly 1 meter from the ground. If the old tree is exposed and renewed, in order to prevent sun exposure, the whitening position should be raised, or the whole plant should be whitened.

1. It can kill bacteria, the white part of the trunk is usually painted with lime water, lime water has a certain insecticidal effect, in winter, the lime water for the trees can kill the germs and pests that overwinter; 2. It can protect the bark, the temperature difference in winter is large, the bark is easily affected by the air temperature, and the white lime can isolate a certain amount of heat, so that the bark can be kept in a constant temperature state and not frozen and cracked.

The main ingredient of the whitening agent used to whiten the lower part of the trunk is lime milk, as well as salt, soybean flour, and stone sulfur mixture. After the plant is whitewashed, the white can reflect the sunlight and various radiation during the day, avoid the temperature in the plant body from being too high, greatly weaken the temperature difference between day and night, and avoid the plant from being damaged by sudden temperature change. In addition, in the late autumn and early winter, many insects like to lay eggs in the cracks of old bark for the winter, and the whitening agent has a killing effect on many pests.