The effect of whitening on fruit trees

With the temperature getting lower and lower, we are also gradually entering the winter. The temperature in winter is very low, so many fruit trees will enter the dormant period to avoid consuming too much nutrition to survive the winter. And many fruit growers will choose to paint the fruit trees white, saying that it will help the fruit trees survive the winter. So what is the effect of whitening fruit trees? Today, the editor will give you a brief introduction. Let's take a look at it.

1. Sterilization and pest control

The whitening agents of fruit trees generally contain substances such as quicklime and salt, and these two substances have a strong effect of sterilization and disinfection. So if the fruit tree is painted white in winter, it can not only eliminate the overwintering bacteria in all parts of the trunk of the fruit tree, but also accelerate the healing speed of the wound of the fruit tree. In addition, many pest eggs also like to spend the winter in the bark crevice and warped bark of fruit trees, and wait until next spring to come out for activities, and if properly whitewashed, these eggs can be eliminated in time.

2. Pest control and livestock control

White canopy of fruit trees can not only eliminate pests, but also prevent fruit trees from being harmed by pests. Because pests that are harmful to fruit trees generally like to move in dark and unclean places. Generally speaking, they are more annoying or afraid of white, so after the fruit trees are whitewashed, pests dare not climb along the trunk to harm the fruit trees. And after whitening can also achieve the purpose of preventing livestock harm. Many livestock are also sensitive to white. After whitening, the livestock are basically not close, so the bark can be prevented from being bitten by livestock.

3. Prevent frost damage

Preventing frost damage is actually one of the most important purposes of whitening tree trunks. Because after entering the winter, until the next spring, the temperature difference between day and night is very large. If it is not dealt with in time, it is very disadvantageous to the growth of fruit trees. Therefore, through white work, fruit trees can reflect sunlight during the day and reduce the temperature difference between day and night, so as to reduce the incidence of frost injury. And after the fruit tree is whitened, the temperature at the base of the trunk does not accumulate quickly, which can delay the budding time and flowering time of the fruit tree, and can effectively reduce the sunburn phenomenon of the trunk and ensure the trunk to survive the winter normally and safely.

4. Matters needing attention in whitewashing

When using the whitening agent, you should pay attention to the use of the whitening agent, and the whitening agent should not be stored for too long. When in use, the whitening agent should be fully stirred to ensure that the whitening agent can be evenly applied on the tree trunk. Be careful to remove pests from the trunk before whitening, which should be carried out on a sunny day. In addition, there are many kinds of whitening agents, including copper sulfate lime whitening agent, which is mainly made of copper sulfate, quicklime and water. Then there is lime-sulfur whitening agent, which is mainly made of quicklime, sulfur, salt, animal and vegetable oils, hot water and other substances.

The above is a brief introduction to the whitening effect of fruit trees. This is the end of today's introduction, this article is for reference only, friends who want to know more relevant information, please continue to follow us!