Monstera Leaves Rotting. To fix this issue youll need to take your plant out of its pot and cut away any roots that are mushy or darker than the others. For this method all you have to do is remove a lower leaf from your monstera right below a node so that the node is on the cutting.
For the mites these new leaves are like dessert. For a plant with severe symptoms root rot is usually present so examining the roots will usually help you make the diagnosis. Other times it is just a secondary expression of something else.
If you notice the lower leaves especially the oldest leaves are turning yellow go ahead and feel the soil.
If the leaves of your Monstera arent splitting it usually comes down to two factors. Black spots on Monstera can be caused by root rot. Other signs of root rot are yellowing leaves. Why are there dark brown spots on my monstera leaves.