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Common Fiddle Leaf Plant Diseases:
How to Identify and Treat

Updated: April 7, 2022

The fiddle leaf plant is a popular indoor plant that has been gaining popularity in recent years. However, like any other plant, it is susceptible to diseases that can affect its health and appearance. In this article, we will discuss some of the most common diseases that afflict the fiddle leaf plant and how to identify and treat them.

Root Rot

Root rot is a fungal disease that affects the roots of the fiddle leaf plant. This disease is caused by overwatering or poorly draining soil, which leads to the accumulation of excess water around the roots. The first sign of root rot is wilting or yellowing of the leaves. As the disease progresses, the leaves will start to fall off, and the plant will eventually die.

To treat root rot, you should first remove the affected plant from its pot and examine the roots. If they are brown and mushy, they have been damaged by the fungus. Cut away all of the damaged roots using a clean pair of scissors or pruning shears. Once you have removed all of the damaged roots, replant the fiddle leaf plant in fresh soil.

To prevent root rot, you should make sure that your fiddle leaf plant’s soil is well-draining and avoid overwatering.

Leaf Spot

Leaf spot is a fungal disease that causes brown or black spots to appear on the leaves of the fiddle leaf plant. This disease is caused by high humidity levels and poor air circulation around the plant. The first sign of leaf spot is small brown or black spots on the leaves. As the disease progresses, these spots will grow larger, and the leaves may start to fall off.

To treat leaf spot, you should first remove any infected leaves from the plant using clean scissors or pruning shears. Then, spray the remaining leaves with a fungicide spray to kill any remaining spores. You should also make sure that your fiddle leaf plant is not exposed to high humidity levels and has adequate air circulation.


Mealybugs are small insects that feed on the sap of the fiddle leaf plant. They are white and fluffy in appearance and can be found on the leaves and stems of the plant. Mealybugs can cause the leaves to turn yellow or brown, and they can also attract other pests like ants.

To treat mealybugs, you should first remove them from the plant by wiping them off with a cotton swab dipped in rubbing alcohol. You can also spray the plant with a neem oil solution to kill any remaining bugs. To prevent mealybugs from infesting your fiddle leaf plant, you should regularly inspect your plants for signs of infestation and isolate any infected plants from healthy ones.


Can I prevent fiddle leaf plant diseases?

Yes, you can prevent fiddle leaf plant diseases by providing your plant with proper care. This includes using well-draining soil, avoiding overwatering, providing adequate air circulation, and keeping humidity levels low.

How often should I water my fiddle leaf plant?

You should water your fiddle leaf plant once a week, or when the top inch of soil feels dry to the touch.

Can I use household products to treat fiddle leaf plant diseases?

No, you should use a fungicide spray or insecticidal soap specifically designed for indoor plants to treat fiddle leaf plant diseases. Household products can be harmful to your plant and may not effectively treat the disease.

In conclusion, identifying and treating common fiddle leaf plant diseases is essential for maintaining the health and appearance of this popular indoor plant. By following proper care guidelines, you can prevent these diseases from taking hold and enjoy a thriving fiddle leaf plant in your home.