Why paint the tree white?

1, sterilization: lime has a certain sterilization effect, which can kill the bacteria parasitic on the trunk.

2, pest control: pests generally like dark and dirty places, do not like clean and refreshing places, the trunk is coated with white lime water, pests are afraid to climb trees.

3. Anti-freezing in winter: White can reflect sunlight, avoid excessive temperature in plants, weaken the temperature difference between day and night, and avoid plants from being hurt by sudden temperature changes in Beijing.

Extended data:

Albino tree species

1. According to the occurrence of diseases and insect pests, diseases and insect pests often occur in Sophora japonica, elm, Lagerstroemia indica, Albizia Albizzia, Populus alba, Lu 'an, Salix, Cherry Blossom, Rosaceae, etc.

2. Some evergreen trees damaged by scale insects, longicorn beetles and aphids, as well as trees easily damaged by freezing, such as Du Ying and Michelia, can be painted white.

3. Other pests and diseases such as Metasequoia glyptostroboides, Ginkgo biloba and Ailanthus altissima. If there are no pests, you can leave them alone.

References:

Paint the trunk white-Baidu Encyclopedia