The most common disease of Adenium obesum is leaf spot. When leaf spot occurs, the spider's leaves will appear brown spots, and gradually expand to form a cluster of disease spots, which will lead to the withering of plants and the falling of leaves.
We should pay more attention to observation when potting. When leaf spot occurs, we can use 50% tobujin wettable powder 500 times to spray and kill the harm of leaf spot and protect the ornamental value of plants.
Soft rot is another common disease of Adenium obesum. The soft rot is characterized by the softening phenomenon of water stains near the growing environment of Adenium obesum. It is white or light yellow at first and then dark brown gradually.
The main reason is that the Adenium obesum can not be well ventilated and watered in the hot summer, which makes the water in the basin increase, leading to rotten roots and soft rot.
For potted Adenium obesum, the sandy loam with good drainage and fertile soil should be selected. Usually, it should not be watered too much. It should be watered once every month or so, and attention should be paid to spraying 200 times of Bordeaux solution for prevention and control.
