1、 Infectious diseases and insect pests
Cause: in the process of maintenance, there may be diseases and pests, such as infection with leaf spot disease and anthrax, which is one of the reasons for leaf rot. spots will appear on the leaves first, and then gradually expand, resulting in leaf rot p>
Solution: remove the diseased leaves in time, then burn them together, and then spray drugs according to the symptoms to ensure the complete elimination of the disease p>
2、 Improper watering
Reason: it likes a humid growth environment, but if it is watered too much, it will lead to root rot, and then affect the stems and leaves, resulting in leaf rot p>
Solution: timely cut off the leaves, trim the roots and plant, and control the application of water. If watering is too much, the water shall be discharged in time to promote the evaporation of water p>
3、 Low temperature
Reason: it can't stand the cold climate. If the temperature in winter is too low, it will be frostbitten and the leaves will rot if it is lower than 10 ℃ p>
Solution: move it to a warm place to promote the growth of new branches and leaves p>
4、 Leaf damage
Cause: in the process of maintenance, if you accidentally hurt the leaves, bacteria will invade and lead to rotten leaves p>
Solution: cut off the rotten leaves and spray fungicide p>