1、 Treatment method

After finding the rotten roots of qiandou tree, if the situation is not serious, you can buy chlorothalonil for treatment, add some water and pour it into the basin soil. However, if the root rot is serious, you need to dig it out of the soil and clean up some soil attached to the root. Use clean scissors to cut off the rotten roots. In addition, don't use the old soil before. You need to replace it with new soil for planting

2、 Daily improvement

1. Water control: most of the root rot is caused by ponding. Usually, it is watered too much, and the plant can not absorb or discharge it. If its roots can't breathe normally in the water, rotten roots will occur. Therefore, to reduce the amount of water, if there is ponding, it needs to be discharged as soon as possible

2. Soil replacement: the soil shall be turned over or replaced irregularly during the maintenance period, because the soil will become airtight after a long time. If the soil is not loosened, the root will not be able to breathe and will rot. It should be turned over more soil and replaced regularly

3. Fertilizer control: too much fertilizer is the most easy to burn roots. It should be watered once in order to irrigate the roots and let the water wash away the excess fertilizer. During curing, not only the amount of fertilizer should be controlled, but also the concentration of fertilizer should not be too high