What to Do If Michelia maudiae (Himalayan Michelia) Has Root Rot? Cause Analysis and Treatment Methods
1. Treatment measures for milder cases
As mentioned earlier, if the situation is not very serious, then you only need to adjust the surrounding environment. Generally speaking, root rot is mostly caused by too much standing water. The same is true for this plant. It does not like standing water, and if too much is watered at once and cannot drain away, it easily leads to root rot. So, first of all, you must adjust the moisture. After root rot occurs, you can pause watering for a period of time. Once the symptoms ease, then slowly begin to water a little again. In addition to this, you can also take some measures such as loosening the soil, which can effectively promote the breathing of the plant's roots.
2. Treatment measures for more serious cases
If the symptoms are particularly serious, then the above methods alone may not work, and special treatment is needed.
First, we need to prepare already fermented and disinfected sawdust as the substrate. Then, rinse the roots as clean as possible. At the same time, try to avoid the liquid flowing out of the rotten roots contaminating other parts of the roots. After rinsing well, you can cut off the rotten parts, then apply an appropriate amount of plant ash (or sulfur powder) to the wounds as a disinfection treatment. After that, place it in a relatively shady place to air dry for a while. Once dried, put it into the substrate we prepared earlier.
Later management is also very important. Cover the whole thing with a plastic bag to ensure a suitable level of moisture. Then, every three to four days, spray a KH2PO4 solution on the leaf surface. This is done to promote rooting. Generally speaking, after about half a month, new roots can grow.