Causes of blackening of mazzihua leaves. Methods for preventing blackening of mazzihua leaves. Mazzihua, also known as water lilac, is a common ornamental plant in southern my country. It is deeply loved for its white flowers and unique aroma. During the maintenance process, many flower friends will encounter the problem of blackening of mazzihua leaves, which not only affects the ornamental value of mazzihua, but may also pose a threat to the growth of the plant. This article will explain the reasons for blackening of mazzihua leaves and provide corresponding prevention and control methods. Reasons for blackening of the leaves of mahogany 1. Disease infection The most common reason for blackening of mahogany leaves is disease infection, such as leaf spot, anthracnose, etc. These diseases are mostly caused by fungi. When the temperature is high and the humidity is high, the pathogen easily reproduces on the leaves, causing the leaves to blacken.
2. Invasive pests are also an important cause of blackening of the leaves of the flower. Common pests include aphids, red spiders, etc. They will absorb plant juice, causing the leaves to blacken and wither.
3. Improper water management Improper water management is also one of the reasons for blackening of the leaves of the mahogany flower. Too much or too little watering will affect the growth of the plant, which in turn will cause blackening of the leaves.
4. If there is insufficient light, the flower likes enough sunshine. Insufficient light will lead to blackening of the leaves and slow growth. Prevention and control methods for blackening of leaves of mahogany 1. Disease control After the disease is discovered, the diseased leaves should be removed in time, and use 800 times of 50% carbendazim wettable powder or 1000 times of 70% thiophanate-methyl wettable powder. Spray, spray every 7-10 days, and spray 2-3 times continuously.
2. After pests are found in pest control, pesticides such as imidacloprid and beta-cypermethrin can be sprayed once every 7-10 days and sprayed 2-3 times continuously.
3. Water management Reasonably control watering to keep the soil moist but not wet. During high temperatures in summer, the number of watering times can be appropriately reduced to prevent root rot.
4. Light management Place the mascot flowers in a sunny place to ensure that the plants can fully receive light.
5. Fertilization management Reasonably fertilize, focusing on nitrogen, phosphorus and potassium fertilizers, and avoid excessive application of nitrogen fertilizer to avoid blackening of leaves.
Blackening of the leaves of mahogany is a common maintenance problem. Understanding the causes and taking corresponding prevention and control measures will help maintain the growth and ornamental value of mahogany. During the actual maintenance process, adjustments need to be made based on specific conditions. In order to achieve the best results, I hope this article can provide help to the majority of flower lovers.