What is the purpose of painting white paint on the tree, and what is the purpose of painting white p

In autumn and winter, we often see green workers carrying buckets and brushes to paint the trees with some white, semi-solidified and semi-liquid substances, and the green trees will be "painted". This is not a simple "whitewashing", but an important part of winter maintenance and management - "tree whitening", the white substance is the tree whitening agent.

The white one is not lacquer, but a whitening agent, which we also call lime water.

This is specially configured to whiten the trees, and the main ingredients are water and quicklime.

table salt, animal oil, etc. Table salt is used to increase osmosis.

Avoid cracking or peeling off the whitening agent. It can also delay the budding and flowering period of fruit trees, prevent frost damage in early spring, and improve the frost resistance of trees. Due to the relatively high daytime temperature in winter, the temperature is low at night, and the bark of many trees is dark and easy to absorb heat, causing the liquid flow in the tree body, and the temperature begins to freeze after the temperature drops at night, and so on and so forth, the bark of many trees will crack in spring, affecting the appearance and reducing the tree momentum, causing the tree to die when it is serious.

To solve this problem, lime is used, which is white and reflects a large part of the sun's light during the day.

Reduce the temperature difference between day and night of the trunk, so as to reduce the temperature difference between the trunk during the day and night, so that the tree is not easy to crack and reduce the frost damage of the tree.

There are many benefits of brushing lime water, the general painting time is in late autumn and early winter, and the main functions are summarized as follows: sterilization, preventing bacterial infection, and accelerating wound healing; Insecticidal and insecticidal. Kills overwintering eggs and dried insects in the bark; Prevent frost damage and sunburn, and avoid frost damage in early spring; Another function is to facilitate walking at night, after the trees are painted white, they will reflect light, and pedestrians at night can see the road more clearly; Then there is the beautification effect.

The white coating of the trunk is harmless to the human body and trees, and the composition of the white paint is quicklime, water, salt, adhesives, etc., which is harmless to the human body and trees. Generally, the height of the application is from meters to meters, which is beautiful and insect-proof.

1.First of all, because there is lime in the white paint on the tree, it has a certain bactericidal effect, which can kill the parasites on the tree, so as to greatly protect the tree from bacterial damage.

2.What trees are most afraid of is that they will be eaten by pests, and then the trees will only perish. White-painted trees can be used to protect the lives of the trees from pests.

3.Trees themselves are also highly susceptible to cold temperatures, and most of the trees in winter will lose their leaves due to the drop in temperature, and even freeze to death. This is where the role of white paint comes into play, because white can reflect sunlight, thereby reducing the temperature difference between day and night of trees, and playing a role in preventing frost damage.

4.First of all, the main components of white paint are lime milk, salt, soybean flour and stone sulfur mixture and other substances, it is best to add a small amount of pesticides, and make white paint after a certain proportion of water.

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.

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 paint 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 look even more neat and beautiful.

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.

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.