Can someone tell me what is on the leaves of my plants? I live in south jersey in zone 7a. I planted my banana plants around the pool in the spring. Later on in summer I put tree chips around the pool to kill weeds about 8 inches thick. As the baby bananas grew through the mulch I think they got a fungus. Can someone identify the problem and give me some kind of remedy to help the plants or is there no way to save them? Thanks all