1、 Cut off rotten roots

After the rotten roots are found, take out the plants from the pot soil immediately, and then cut off the rotten part with sterilized scissors. If it is only slight, scrape off the rotten part carefully. In short, the rotten part must be cut off, otherwise it will continue to deteriorate, resulting in the decay of the whole plant, and finally die without treatment

2、 Immersion disinfection

It cannot be planted immediately after cutting. It must be disinfected first, otherwise it is easy to leave bacteria and continue to infect. When disinfecting, you can dilute the potassium permanganate solution, and then put the pruned roots in it for about two hours

3、 Soil replacement Basin

New basin soil should be prepared when loading the basin. Remember that the original soil can not be used again, because there will be residual bacteria to avoid infection. After preparing the new soil, it is best to soak it with disinfectant. The soaked soil can promote the later absorption of the trunk, but the dosage should not be too much to avoid burning seedlings