Monstera Yellow And Brown Spots. Dark brown spots on monstera leaves is a good indication of the plant getting too much water. They are usually caused by incongruent watering poor nutrition improper sun exposure and temperature intolerance.
Are they brown and crunchy or brown and soft. There are numerous reasons why you might get brown spots on your leaves. Dark brown spots on the leaves.
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It can also be caused by insects and those that cause diseases like leaf spot and rust. Bacterial and fungal diseases can cause leaf spots on Monstera. Aphids look like tiny white grains of rice on the stems and leaves of your plant. Providing proper and consistent soil moisture is important in caring for a Monstera.