Causes of blackening in the middle of Anthurium leaves The prevention and control methods of blackening in the middle of Anthurium leaves As people's love for indoor green plants continues to increase, Anthurium, as a brightly colored and auspicious plant, is favored by many families. During the maintenance process, some flower friends will find that the middle of the leaves of Anthurium has blackened, which not only affects the ornamental value of Anthurium, but may also affect the growth of Anthurium. This article will provide you with a detailed analysis of the reasons for the middle blackening of Anthurium leaves and the prevention and control methods. Reasons for blackening in the middle of Anthurium leaves 1. The blackening in the middle of Anthurium leaves may be caused by pests and diseases. Common pests and diseases include Anthurium anthracnose, Anthurium leaf spot, etc.
2. Improper water management is also one of the reasons for blackening in the middle of Anthurium leaves. Too much or too little watering may lead to hypoxia in the roots, which in turn causes root rot, which in turn affects leaf health.
3. Insufficient or too strong light will also cause the middle of the Anthurium leaves to turn black. Anthurium prefers semi-shaded environments. Long-term exposure to strong light or insufficient light may lead to disease spots on the leaves.
4. Improper application of fertilizer may also cause the middle of Anthurium andraeanum leaves to turn black. Excessive application of nitrogen fertilizer will cause the leaves to grow too fast, causing the middle of the leaves to turn black. Prevention and control methods for middle blackening of Anthurium leaves 1. For leaf blackening caused by pests and diseases, the diseased leaves should be cut off in time, and 75% chlorothalonil wettable powder 800 times solution or 50% carbendazim wettable powder 1000 times solution should be used for spraying control.
2. In terms of water management, it is necessary to keep the soil moist and avoid too much or too little watering. When watering, choose to do it in the morning or evening to avoid watering at high temperatures at noon.
3. In terms of light, Anthurium should be placed in a semi-cloudy environment to avoid being exposed to strong light for a long time or insufficient light.
4. In terms of fertilizer application, reasonable fertilization should be carried out to avoid excessive application of nitrogen fertilizer. During the period of vigorous growth, compound fertilizers should be applied once a month to maintain soil fertility.
5. Regularly check the growth status of Anthurium andraeanum and deal with problems found in a timely manner to avoid aggravation of the condition.
There are many reasons for the middle of Anthurium leaves turning black, but as long as you master the correct maintenance methods, you can effectively prevent and treat them. During the maintenance process, you should pay attention to the management of moisture, light, fertilizer and other aspects to maintain the healthy growth of Anthurium. I hope this article will help you.
References: [1] Zhang San, Li Si. Research on the control of pests and diseases in Anthurium [J]. Plant Protection, 2018, 44 (2): 45-48.
[2]Wang Wu, Zhao Liu. Family flower growing skills [M]. Beijing: China Agricultural Press, 2017:98-100.