Whitening methods of fruit trees and matters needing attention

As the temperature drops gradually, as winter is coming, we will see that fruit growers in each orchard will whitewash the fruit trees. Many people are more curious, what is the effect of whitening the fruit trees? What do you notice when you paint white? Let's take a look at it with the editor.

1. Whitening effect of fruit trees

Painting white on fruit trees can reduce the heat emitted by the sun, so as to avoid being sunburned or frostbitten. The main prevention of whitening in winter is low temperature frostbite, whitening can also harm pests and bacteria at the base of the trunk, because the whitening agent is generally made of lime, has excellent sterilization and disinfection around, and can prevent insect pests from spawning. Whitening can also cover the wound, avoid further infection of germs, reduce the occurrence of trunk diseases, and dissolve the wax on the upper epidermis of insects and the propagation of fungi, making it easier for chemicals to enter the tree and effectively control pests.

2. Whitening time of fruit trees

Generally speaking, from the effect of fruit tree whitening, it is mainly to resist the severe cold and control diseases and insect pests, so fruit tree whitening is usually carried out from late November to mid-February of the following year. Because of the low temperature during this period, the cold air is sinking seriously, the tree trunk is extremely vulnerable to freezing damage, and the diseases and insect pests will survive the winter in the cracks in the tree trunk. At this time, the white treatment of the tree trunk can effectively reduce the base of diseases and insect pests, and can get twice the result with half the effort in the prevention and control of diseases and insect pests in the coming year.

3. Matters needing attention in whitening fruit trees

In the production of whitening agent to use raw stone gray white, no impurities, sulfur powder should be very fine, it is best to add some neutral washing powder, and the whitening agent is alkaline, so it is not suitable to mix with alkali unstable pesticides, not with Bordeaux liquid. Whitening of branches can be carried out throughout the year, but it should be noted that the whitening effect is different, its whitening time is also different, sunburn prevention can be carried out in May-June, and pest spawning should be whitened in April-May. When the fruit tree is whitened, it is best to treat the plant, such as bandaging the crack, and the whitening agent should be used with it. In the smear, it is well stirred until it is thick and uniform, so that it does not flow down on the tree trunk, does not stick to a pimple and can stick on a thin layer.

The above is the introduction of fruit tree whitening methods and matters needing attention. I hope it can help you. If you want to know more about it, please follow us.