Bonsai, as one of the traditional arts of China, is deeply loved by people. In the process of maintenance, the phenomenon of yellow leaves in bonsai often plagues many enthusiasts. This article will unveil the causes of yellow leaves in bonsai and provide corresponding prevention and treatment methods to help you maintain a healthy and beautiful bonsai.
What is going on with the yellow leaves of the bonsai?1. Improper water management
Water is an important condition for plant growth. Excessive or insufficient water can cause yellow leaves in bonsai. Too much watering can lead to hypoxia in the roots, thus affecting the normal growth of the plant; while insufficient watering will cause the plant to lose water, leading to yellow leaves.
2. Insufficient lighting
Light is an important source of photosynthesis for plants. Insufficient light will slow down plant growth and cause leaves to turn yellow. Uneven lighting can also lead to yellow leaves in bonsai.
3. Improper application of fertilizers
Fertilizers are the source of nutrition for plant growth. Excessive or insufficient fertilization can cause yellow leaves in bonsai. Excessive fertilization can damage the plant's roots, affecting normal growth; while insufficient fertilization will cause the plant to lack nutrients, leading to yellow leaves.
4. Pest and disease invasion
Pests and diseases are common causes of yellow leaves in bonsai, such as aphids, red spiders, leaf spot disease, etc. These pests and diseases will damage the leaves of the plant, causing the leaves to turn yellow.
Prevention and treatment methods for yellow leaves of bonsai1. Water management
Reasonably control watering to avoid excessive or insufficient amounts. Observe the soil moisture of the bonsai and keep the soil slightly moist. In high summer temperatures, the frequency of watering can be increased appropriately; in low winter temperatures, watering should be reduced.
2. Adjusting lighting
Place the bonsai in a well-lit area, such as a windowsill or balcony, and avoid placing the bonsai in a dark place to prevent interference with the plant's photosynthesis.
3. Application of fertilizers
Apply fertilizers according to the growth stage and needs of the bonsai. Spring and autumn are the peak growing seasons for plants, and fertilization can be increased appropriately; in summer and winter, growth is slow, and fertilization should be reduced.
4. Pest and disease control
Regularly inspect the bonsai and take timely measures when pests and diseases are found. Pesticides and fungicides can be used for prevention and treatment, while also maintaining good ventilation and cleanliness in the bonsai environment.
What is going on with the yellow leaves of the bonsai? It is mainly caused by improper water management, insufficient lighting, improper application of fertilizers, and invasion of pests and diseases. By understanding these causes, we can take corresponding prevention and treatment methods to ensure the healthy growth of the bonsai. It is hoped that this article will be helpful to the majority of bonsai enthusiasts.
References:
[1] Zhang Hua, Wang Lihua. Bonsai Maintenance Technology [J]. Botanical Garden, 2018, 37(2): 56-59.
[2] Li Ming, Zhang Wei. Research on the Control Technology of Bonsai Pests and Diseases [J]. Plant Protection, 2019, 45(3): 120-123.