I live in the South and have heard that on older homes people would paint their porch ceilings a light blue to keep the dirt daubers (or mud daubers) from making their homes there. Does anyone know if there is any truth to this??
I have have heard the same thing as they say the bugs will think it is the sky and not build their nest there. I don't know if it is true or not but it sure makes a porch ceiling look nice. It is usually a blue a little bit on the green side.