Monstera Deliciosa Brown Spots On New Leaves. When there are a few spots on a leaf and they begin to grow they will eventually join together and become a large blotch on the leaf. This disease is also caused by fungi.
The plant just sits there doing their best. Keep in mind that after a leaf develops it will not change. Eventually the whole leaf will turn brown and fall off.
But the frequency of which your monstera grows new leaves isnt something the plant controls.
Growing a Monstera plant does not require special treatment but this plant does have problems with the plant leaves turning yellow or brown as well as developing brown spots. As Monstera deliciosa ages the new leaves will have more and more fenestrations holes and slits among the leaves. Keep in mind that after a leaf develops it will not change. Then new leaf off shoots from other stems started come in and the tips are brown.