As for deciduous leaves, the problem of white spots on leaves may be caused by many reasons. For example, if the soil is too wet or too dry, or the light is insufficient, the leaves may fall off. White spots on leaves may be caused by diseases and insect pests, nutritional deficiency or environmental discomfort.
The following are some maintenance suggestions for banyan trees, hoping to help you:
1. soil: soft, breathable and well-drained soil can be selected, and humus soil, garden soil and river sand are mixed according to the ratio of 1: 1: 1.
2. Moisture: Ficus carica likes humid environment, but avoid watering too much, so as not to cause root rot. You can observe the humidity of the soil and water it when the soil surface is dry.
3. Lighting: The banyan tree needs sufficient lighting, but it should avoid exposure to sunlight and being in a dark environment for a long time. It is best to put it in a bright place indoors.
4. Temperature: The suitable temperature range is 20-30 degrees Celsius. If the temperature is too low in winter, you can consider using insulation equipment.
5. Fertilization: Diluted fertilizer can be applied once every month or so. Note that too thick fertilizer may cause root burning.
If you still have problems with your banyan tree, I suggest you consult a professional plant maintainer or go to a local flower shop for help.