Orchid leaves turning black
Today's focus is to introduce the explanation of why orchid leaves turn black and why orchid leaves turn black. Let's take a look with the editor! Orchid leaves turning black may be caused by excessive watering. You should immediately reduce watering and water thoroughly when the soil is dry, following the principle of drying and wetting; if it is due to insufficient light, the orchid should be moved to a place with scattered light for maintenance; if it is due to excessive spraying of pesticides, you can wipe its branches and leaves with a damp cloth.
Reasons for black spots on orchid leaves
1. Excessive watering
Many people find that orchid leaves turn black when caring for orchids, which may be caused by excessive watering. You should immediately reduce watering and move the potted plant to a well-ventilated and dry place. Wait until the soil becomes relatively dry before returning to normal maintenance. Watering can follow the principle of drying and wetting, watering thoroughly each time. In winter, the amount of watering should be controlled.
2. Insufficient light
Orchids should not be kept in a dark place for a long time when raising them, as this will severely affect their growth and cause their leaves to turn yellow and black. The orchid should be moved to a place with scattered light for maintenance to ensure adequate light, which can make it grow lush and more ornamental.
3. Excessive spraying of pesticides
If excessive pesticides are sprayed to prevent diseases and pests, it can cause the orchid leaves to turn black. You should wipe the branches and leaves with a damp cloth and preferably change the soil and plant it again. When preventing diseases and pests, the pesticide should be sprayed every 10 days or so, and 2-3 consecutive sprays can achieve the effect of prevention and treatment.
4. Over-fertilization
Orchids need to apply a moderate amount of fertilizer during the growing period, which helps their growth. However, excessive fertilization can cause them to suffer from fertilizer damage. In this case, you should rinse the roots of the plant with water to dilute the fertilizer and then plant it in new potting soil for maintenance. Fertilizer can only be applied after three months.
The above-mentioned content about why orchid leaves turn black and the causes of black orchid leaves, netizens may refer to this aspect for reference.