(1) specific cause: the most likely cause is that the plant is ill. For this plant, it is easier to get a disease called "blight". From its name we can see that it can make its leaves wither, no spirit
(2) solutions: the first thing to do is, of course, to cut off all the diseased leaves and deal with them intensively. For example, deep burial or direct burning. Then spray some medicine for remedy, such as chlorothalonil solution. The specific frequency shall be controlled once every ten days to half a month, and it can be relieved by using it three to five times in total. After the maintenance management is also very important. First, ventilation, light transmission, and then appropriate watering. Of course, from a long-term perspective, you can also choose those resistant varieties to plant, not susceptible to disease.
(1) specific reasons: if you want the plants to grow healthily, then light is necessary. However, if the light is too strong, or the time to see the light is too long, the leaves are likely to wither.
(2) solution: observe the position where the plant is placed and whether it is irradiated by the strong direct light. If it is, then give it proper shading, after a period of time can slow down
(1) specific reasons: usually we give it too much water, which leaves water in the flower soil, thus affecting its normal absorption of nutrients, leading to the withering of leaves
(2) solution: the remedy to this situation is, of course, to regulate water volume. In addition, it is very important to choose the soil with good water permeability.