1. Due to insect damage, if insect damage occurs, feces and other excrement of insect can be found from the front of leaves. The main pests are spiders, scale insects, etc.
2. If the temperature is too high and there is water on the leaf surface, freezing spots will occur.
3. The poor ventilation in summer and the unique humid and sultry environment will also cause some diseases and insect pests.
4. Too much water
1. To maintain the permeability and porosity of the soil, it is better to choose a more fertile and sandy soil.
2. Watering should be reasonable and not excessive, which will cause water accumulation.
3. When the temperature is very high in summer, pay attention to proper ventilation.
4. Always observe plants, find diseases and insect pests, remove the persecuted places in time, and spray them with medicine in serious cases.
5. Pay attention to heat preservation and cold prevention in winter, do not spray water on the plant surface when the temperature is low, or it will easily cause frostbite.
6. You can wash the leaves with alcohol (instead of drinking white wine). You can also wash the leaves with dissolved washing powder water, but be careful not to let the washing powder water drop into the soil, which will affect the normal growth of plants.
