Winter Fungal Diseases: How To Get Rid Of Yellow And Brown Spots On Houseplants

Fungal problems are the most fearful enemy of every plant lover. This is the most persistent issue faced by many who are growing indoor plants.

Fungi thrive on the energy from the plants on which they live. As the fungus grows, the plant withers. Plant fungus can quickly damage and even kill plants. Different types of fungi have a variety of appearances that include wilting, scabs, moldy coatings, blotches, or rotted plant tissue. However, the most common disease that plagues houseplants is leaf spot–yellow or brown spots that develop on an outer leaf and move inward.

Fall and winter are the seasons which trigger these fungal diseases. So, in order to prevent the appearance of yellow and brown spots on houseplants leaves, examine them carefully every day. Look for yellowish margins surrounding small brown spots on leaves. These spots may look like targets with concentric rings. Numerous diseased spots often enlarge and join together, forming large blotched areas. Some fungi infect leaves and cause them to wither and drop. Dead or dying leaves may be marked with a series of small black dots.

How To Care For Plants With Fungal Diseases


Move the sick plant to another room in your home at the first sign of fungal infection. You’ll need to isolate it from your other plants to keep the fungus from spreading to healthy plants. With several months of intense therapy, you should be able to return the plant to its rightful spot.

Pick off infected leaves as soon as you notice any spots on them. If the houseplant is full, trim out a little of the excess interior foliage to promote good air circulation, which is crucial for fighting fungus. Seal the diseased leaves and other trimmings in a plastic bag, and dispose of them in the trash. Do not add infected foliage to your compost heap.

Homemade Fungicide For Yellow And Brown Leaf Disease


You Need:

  • 1 cup of hot tap water
  • 1 and 1/2 teaspoons of baking soda
  • a few drops of Murphy’s oil
  • spray bottle

Mix the above ingredients in the spray bottle and shake well the container for the baking soda to dissolve. Spray the solution over the infected plant and use it in the same day. Prepare another one each time you apply the fungicide.


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