Monstera Leaf Disease. This disease is also caused by fungi. Spider mites scale and mealy bugs are among the pests that love to feed on the Monstera plants.
Signs that your plant is affected by scale insects is leaf drop or yellowing leaves and white and yellowish spots on the leaves stems or branches. Take a look at the following progression of leaves from my own plant. Monstera Plant Food is the original fertilizer created specifically for monstera plants to help support healthy growth dark green leaves and protection against disease.
Removing rotten roots will also get rid of leaf yellowing or browning.
Fungi bacteria or other pathogens can be the possible reason for the leaf spot disease of a monstera. Monstera turning brown could be a symptom of a disease. Bacterial Blight Philodendron. Keep in mind that after a leaf develops it will not change.
