1、 Air drying

Reason: the growing environment of Phalaenopsis needs to maintain high humidity. If the growing environment is too dry, it will cause slight yellowing of leaves

Solution: the humidity should be maintained. When the environment is dry, spray water to the surrounding appropriately and improve the humidity through evaporation

2、 Improper water and fertilizer

Reason: Phalaenopsis needs reasonable watering and fertilization in its growth. If watering is ignored, it will lead to soil drought and dry roots. Lack of fertilizer will lead to insufficient nutrients and weak plant growth. If water and fertilizer are applied too much carelessly, it will cause root rot and yellow leaves

If there is a lack of water and fertilizer, it can be solved. If there is too much water and fertilizer, stop watering and fertilization, properly ventilate to evaporate the accumulated water, and properly water to dilute the fertilizer

3、 The light is not right

Reason: Phalaenopsis likes to grow in semi shade. Being out of light all the time will weaken the plant and make the leaves yellow. Being exposed to strong sunlight will make the leaves burn and yellow

Solution: ensure sufficient scattered sunlight to meet the needs of plant growth, and pay attention to avoid strong light exposure

4、 Temperature discomfort

Reason: Phalaenopsis has high requirements for temperature. It can't stand high temperature in summer and cold in winter. If the temperature is wrong in summer and winter, it will also cause the leaves to turn yellow

Solution: the temperature in summer should not be higher than 32 ℃, and proper water spray should be used to moisturize. It's best not to be lower than 15 ℃ in winter and keep it indoors