I have a terrible rotting smell in my bathroom wall it took a while to pin point the location but yesterday I noticed little maggot looking things on my window sill I was told it was likely wasp larvae? The smell is strongest around the window and seems to be leaking around in from inside the wall. I can't understand where these creatures are coming from as there doesn't seem to be holes anywhere. We did have a wasp problem outside this window around the eaves this fall. I have been told rotting wasp nest, dying larvae smells like rotting meat. That is the smell. Does anyone know how long it takes for a nest to die off? I don't want to have to tear walls down to try to find it any suggestions?:eek