1. Treatment methodsOnce you notice that its leaves have turned black, you need to cut off the black leaves as soon as possible. This is done to avoid the appearance of more black leaves, which may infect more leaves and reduce the ornamental value if not pruned. However, attention should be paid to disinfection when pruning. It is also necessary to find out the cause of the black leaves, and then change the maintenance method according to the cause, so that it can be remedied well. If the leaves turn black severely, you need to cut relatively healthy and thick branches and propagate them again by cuttings. 2. Specific Remedial Measures1. Pay attention to insulation: the plant cannot grow at low temperatures. If it is frozen, the leaves will turn black. At this time, you should pay attention to adjusting the temperature to avoid the plants being blown directly by cold wind. 2. The light is too strong: When the sun is strong at noon, it is necessary to provide proper shade, especially in summer, and it must not be exposed to direct sunlight. You can build a shade net for it, or move it to a cool place for maintenance. |
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