1、 Is vinegar OK

Black spots grow on Orchid leaves, which is a disease that can be alleviated by vinegar. It only needs to spray the leaves. In addition to alleviating black spots, it can also alleviate diseases such as yellowing and powdery mildew. It is a more effective method. However, it can not be cured. Generally, the black spots on the leaves are due to the rotten roots under them. If you want to cure them completely, you still need to take other measures

2、 Solution

1. Pruning rotten roots: take out the plants slowly, trim the old roots next to them, then cut off the rotten parts, and then rinse them with water

2. Change pots earlier: prepare new pots, add appropriate substrates inside, pay attention to drainage and ventilation, and then plant them

3. Control the light: after completion, put it in a place with good air circulation, and do not expose it to the sun

4. Reasonable watering: after the plant gradually adapts, it needs correct watering, not too much watering, so as not to cause root rot again due to ponding. If it is placed outside, choose a place that can keep out the rain for maintenance. If you are not careful in the rain, you need to pour out the water in the basin in time