Crown root rot (Rhizoctonia solani). It is a fungal disease that affects both indoor and outdoor plants, but the most common is indoor plants. The reason is poor and excessive irrigation, and this disease is often fatal to plants, and there is no effective treatment.

After crown rot, individual leaves begin to turn brown. Starting from the heart leaves, the upper parts of the plant wither and finally die. Inside the root, you can clearly find reddish-brown rotting spots. These factors disrupt the supply of water to plants. Symptoms of crown rot appear in the spring, very soon after flowering. Healthy plants growing next to infected plants is typical of the disease. In warm spring weather, initial losses appear after 4-6 weeks.