1、 Normal light

Reason: smooth sailing, prefer astigmatism, do not like to grow in strong sunlight, so a long time without light will lead to weak growth and natural yellowing of leaves. Once exposed to the sun, it will also lead to burning and yellowing of leaves

Solution: provide sufficient scattered light during the growth period and cannot be in the shade environment for a long time. The light in summer is very strong and needs to be covered. Once exposed to the sun, it needs to be moved to a cool place in time

2、 Increase humidity

Reason: humid environment is conducive to growth. If the humidity is relatively low and the air is very dry, yellow leaves will appear

Solution: in the dry period, it is necessary to spray water properly and improve the humidity by evaporation

3、 Proper watering

Reason: improper watering will also lead to the yellowing of smooth leaves. Long-term non watering will lead to the drought of basin soil and the lack of yellowing of plants. Once watered too much, it will accumulate water and rot roots, affect the transportation function and cause yellow leaves

Solution: the watering should be correct. Supplement water in time at ordinary times to meet the needs of growth, but don't pour too much water at one time to prevent waterlogging

4、 Pest control

Reason: careless infection with diseases and insect pests will also lead to yellow leaves

Solution: prevention should be done at ordinary times. In case of diseases and pests, it is necessary to distinguish the symptoms and then spray medicine for treatment