Modeling and maintenance of bonsai of Populus tomentosa

Euonymus tomentosa is an evergreen shrub or small tree of the Euonymus family, also known as Orthodox and Holly. Because its leaves are evergreen all the year round, it is also known as "holly" or "Daye holly". Populus tomentosa can be processed into straight dry type, oblique dry type, curved dry type, double dry type and other different forms of bonsai according to the stump shape.

The seedling branches are soft and can be modeled from a small age, first banding the trunk, then the main branches and lateral branches, and pay attention to cutting off the excess branches in time. Because of its large leaves, small and medium-sized bonsai crowns mostly use chic natural shapes, while large bonsai use regular round, steamed bread and triangular crowns. The modeling is mostly carried out by the method of "coarse binding and fine cutting" in the growing season, first using wire to tie out the basic shape, and then fine pruning until it is formed. The characteristic of fast wound healing of Euonymus tomentosa can be used to carve the trunk to make it old and simple.

Populus tomentosa likes warm, humid and sunny environment, slightly resistant to shade and cold, and is not strict with the soil, so it can be planted with ordinary garden soil. Usually can be put in the outdoor ventilation to the sun to maintain, watering to see dry and wet. Water should be watered frequently in summer to ensure an adequate water supply and prevent leaves from drying up. Spray water to the plant when the air is dry, which can not only increase the air humidity, but also wash away the dust on the leaf surface and make the leaf color clean and moist. Apply thin alum fertilizer and water once a month to provide sufficient nutrients to make the leaves green and bright, but to avoid excessive fertilizer and water, otherwise the plants will grow too long and the leaves will become larger and affect the ornamental. The germination of Euonymus tomentosa is strong, and it is often necessary to hit the head and pick the heart in maintenance in order to control the plant growth and make the leaves dense and small. The branches and new buds that affect the tree shape should be removed in time to maintain the beauty of the bonsai. Do not apply fertilizer in winter, when the basin soil is too dry, you can properly pour some water to keep the soil moist and avoid the death of bonsai caused by dry freezing. It should be noted that the indoor overwintering big-leaf boxwood bonsai should not leave the room too early, because it sprouts early, if it encounters spring cold or sudden cooling, it is easy to freeze to death of new buds, resulting in weakening of plant growth and death of plants in serious cases. The basin is turned every spring every two years. Insect pests such as shell insects, diamondback moths, diamondback moths and leaf rollers are easy to occur in summer and autumn, so attention should be paid to prevention and control. The main disease is powdery mildew, which can improve the cultivation environment, maintain air circulation and avoid muggy and humid environment. If the disease occurs, it can be controlled by spraying carbendazim, carbendazim or benzoate zinc from 600 times to 700 times.