Causes and treatments for yellow leaves of pitaya

1. Too much watering

1. Reason: Whether it is potted or planted in the ground, as long as there is too much water at the roots, the roots will suffer from lack of oxygen and rot. If the soil is hard and sticky, root rot is likely to occur.

2. Treatment method: If this happens, reduce the frequency of watering, loosen the soil, reduce the degree of compaction, and ventilate and dry the soil. If it is a potted plant, it is best to change the pot once a year. It may be necessary to change the pot. Remove the soil and re-prepare the culture soil. It will get better within a period of time and you can water it normally.

2. Insufficient light

1. Reason: Pitaya is a light-loving plant. If the light intensity or light time is not long enough, yellow leaves may appear.

2. Treatment method: If yellow leaves have occurred, transplant the plant immediately or move it to a sunny place. You can also cut off some of the more severely yellow leaves, let it grow again, provide it with suitable light conditions, and provide appropriate shade in summer.

3. Improper fertilization

1. Reason: If there is a lack of fertilizer for a long time or the fertilizer used lacks some nutrients, it will also cause yellow leaves. Nutrient deficiency or infrequent fertilization can also cause yellowing leaves.

2. Treatment method: It needs to be given a multi-element compound fertilizer. If it is planted in the field, the effect of using farmyard manure is very long-lasting. It is sufficient to apply farmyard manure once every two months. If it is a potted plant, it is recommended to use a multi-element organic nutrient solution for fruits and vegetables, and fertilize once a month. If the patient is lacking iron, the most commonly used and effective method is injection of 0.05-0.1% ferrous sulfate solution.