They belong to deciduous shrubs or small arbor. The Lagerstroemia is a small arbor, so they are generally revealed after these 2 kinds of pests occur. On sunny days, the grass felt can be removed during the day to increase temperature. Two to three months after cutting, the seedlings can be bare-root. After the disease occurs, the leaves of the Lagerstroemia often wither and fall. After digging up, they can also be transplanted. Water normally after rooting. It's better in spring from March to April. The air layering method can choose 1 to 2 years old branches, with fine branches and small leaves. Lagerstroemia is more cold-resistant. The roots can not curl in the potting soil. Pay attention to proper positioning. Commonly known as Yang La Zi, use film coverage, and then move to a place with sufficient sunshine and ventilation.