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How to Get Rid of Mold on Dieffenbachia Plant

Updated: July 6, 2022

Dieffenbachia plants are popular houseplants known for their beautiful foliage and easy maintenance. However, like any other plant, they can be susceptible to mold growth if not properly cared for. Mold on dieffenbachia plants can cause a range of problems, including leaf discoloration, leaf drop, and stunted growth. Here’s how to get rid of mold on your dieffenbachia plant.

Identify the Mold

Before you begin treating the mold, it’s essential to identify the type of mold on your dieffenbachia plant. There are many different types of mold, and each requires a unique treatment method. The most common types of mold found on dieffenbachia plants include powdery mildew, black mold, and gray mold.

  • Powdery Mildew: Powdery mildew appears as a white or gray powder on the leaves of the plant. It typically occurs in warm, humid environments.
  • Black Mold: Black mold appears as black spots or patches on the leaves of the plant. It typically occurs in damp environments.
  • Gray Mold: Gray mold appears as fuzzy gray patches on the leaves of the plant. It typically occurs in cool, moist environments.

Remove Affected Leaves

Once you have identified the type of mold on your dieffenbachia plant, you can begin treating it. The first step is to remove any affected leaves from the plant. Use sharp scissors or pruning shears to cut off any leaves that show signs of mold growth. Be sure to dispose of the affected leaves carefully to prevent spreading the mold to other plants.

Increase Air Circulation

Mold thrives in warm, humid environments with poor air circulation. To prevent further mold growth on your dieffenbachia plant, increase air circulation around the plant. You can do this by placing a fan near the plant or moving it to a location with better air circulation.

Adjust Watering Habits

Overwatering is a common cause of mold growth on dieffenbachia plants. To prevent mold growth, adjust your watering habits to avoid overwatering the plant. Allow the soil to dry out slightly between waterings, and be sure not to let the plant sit in standing water.

Apply Fungicide

If the mold on your dieffenbachia plant is severe, you may need to apply a fungicide to eliminate it completely. There are many different types of fungicides available, so be sure to choose one that is safe for use on houseplants. Follow the instructions carefully when applying the fungicide, and be sure to wear gloves and protective clothing.


Can I prevent mold growth on my dieffenbachia plant?

Yes, you can prevent mold growth on your dieffenbachia plant by maintaining proper care and hygiene. This includes adjusting your watering habits, increasing air circulation around the plant, and regularly inspecting the leaves for signs of mold growth.

What causes mold growth on dieffenbachia plants?

Mold growth on dieffenbachia plants is typically caused by poor air circulation, overwatering, and high humidity levels.

How do I dispose of affected leaves?

Dispose of affected leaves by placing them in a sealed plastic bag and throwing them away in the trash. Do not compost affected leaves or dispose of them in the yard waste bin.