White Mold on Ferns

Overview

Many people enjoy growing houseplants for the decorative and environmental appeal. Depending on your cultivation habits, you might notice a white mold on your ferns. This is a common problem for many houseplants, including ferns.

Identification

When you notice white or gray mold or powder on the leaves of your fern plant, the culprit is a fungal disease known as powdery mildew. Powdery mildew is a common plant disease that attacks ferns, as well as roses, garden vegetable plants and other types of houseplants.

Causes

Powdery mildew or white mold, is caused by a fungus that spreads between plants. It is more prevalent on ferns when the plant is kept in a wet environment. If your ferns are outside, cool nights followed by warm days can make the problem worse.

Prevention/Solution

There are several steps you can take to prevent a powdery mildew infection or get rid of already present white mold spores. Reduce the moisture in the growing environment, allow plenty of air circulation and hose off the fern plant outside, if possible. Make sure any fungicide you use is recommended for fern plants, as this plant is very sensitive to many chemical solutions.

References

  • University of Maine: Powdery Mildew-Free Herbaceous Plants
  • Ohio State University: Controlling Rose Diseases
  • Plant Care Guru: Ferns Houseplant Care
  • Washington State University: Powdery Mildew
  • Santa Rosa Tropicals: Fern Growing Tips
Keywords: white mold ferns, powdery mildew ferns, treat powdery mildew

About this Author

Rosa Lyn has been a freelance writer since 2009. She has worked as a ghostwriter for companies such as eBay and was the editor-in-chief for the member newsletter at the websites SewingMamas. She specializes in subjects such as home and family, parenting, alternative health and crafts.

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