Causes and treatments for yellow leek leaves

1. Improper watering

1. Reason: The amount of watering needs to be controlled. If you water too frequently, there will be excess water in the soil, causing damage to the roots and the leaves will turn yellow. If there is insufficient water, it will lead to water shortage and the old leaves will show signs of drought and yellowing.

2. Treatment method: When there is too much water, if it is not serious, stop watering and draining immediately. If it causes root rot, you need to cut it off and then change the soil and replant it. If there is too little water, you need to water it in time and replenish it gradually.

2. Excessive Fertilization

1. Reason: The fertilizer required for leek growth is limited. If too much fertilizer is applied, the roots cannot fully absorb it, burning the roots and causing the leaves to turn yellow.

2. Treatment method: Water the soil to drain excess fertilizer, or rinse the roots, then change the soil and replant. At the same time, remember not to use too much acidic fertilizer.

3. Causes of pests

1. Reason: The main insect pest of leek is leek maggot, which will harm the plant, resulting in reduced root absorption capacity, yellowing leaves, and even death of the plant in severe cases.

2. Treatment method: You can use highly effective and low-toxic insecticides, such as dichlorvos powder, chlorpyrifos emulsifiable concentrate, etc. to reduce the harm caused by leek maggots.