Houseplants are not as susceptible to diseases as those grown outdoors, but sometime fungus can become a problem even for the most well cared for of indoor plants. Fungus grows best in moist and humid conditions. Symptoms of fungal infection include discolored spots on leaves, the formation of spores and rotting of the leaves and roots. Though chemical fungicides are available to treat fungal infections, it is usually best to try natural remedies on houseplants first.
Remove infected leaves from the plant and place them in a plastic bag to prevent the fungus from spreading. Leaves will contain discolored spots or spores or will show signs of rot. Dispose of the plastic bag immediately to prevent further fungal infection.
Check the soil for excess moisture and make sure that leaves are dry. Do not mist your plant while it is suffering from a fungal infection.
Remove plant from its pot if the infection continues or if roots show signs of rot. Remove infected parts of the roots and check leaves for further infection. Remove any infected leaves as before.
Plant in a new pot with new soil. Do not overwater and be sure to keep leaves dry.
Watch plant for further signs of infection and continue to remove infected leaves as they appear.