Why did the white ash on the trunk only brush one meter?

The white lime on the trunk is only brushed one meter, because there are many old skins and eggs below one meter, which is convenient for workers to operate and can play a neat and beautiful role.

Lime has a certain bactericidal and insecticidal effect, which can kill some overwintering fungi, bacteria and pests parasitic on tree trunks. Because pests usually prefer black and dirty places to white and clean places. When the trunk is coated with white limewater, the pests in the soil will not dare to climb up the tree along the trunk.

Tree species with white trunks:

In view of the occurrence of diseases and insect pests, the evergreen trees in Sophora japonica, Ulmus pumila, Lagerstroemia indica, Albizia Albizia, Populus euphratica, Luan, Liu, Cherry Blossom and Rosaceae, as well as some trees harmed by scale insects, Cerambycidae and aphids, as well as trees susceptible to freezing injury, such as Du Ying and Michelia, can be painted emphatically, while other trees less harmed by diseases and insect pests, such as Metasequoia glyptostroboides.