I'd like to know how to remove a heat transferred applique from a wedding gown. I'm not sure of the fabric but it is very similar to tulle in that it is a fine mesh material. The applique appears to have been applied by using heat and the beading is stitched on to it.
I don't think you're going to be able to get this off easily. It sounds rather fragile. You can't use much heat on the mesh since it will more than likely melt. So you can't reheat it to get the glue off. If you try to use a chemical product you will probably discolor the fabric. You could try taking it to a dry cleaner and seeing what they suggest. Sometimes you just can't get these off without ruining the material.
Next best thing would be to replace the entire section with new mesh/tulle.
Best of luck,