I lost a poly nuc a couple of years ago to the bloody wax moths ... they seem to prefer burrowing into the poly than what's in the frames. It's a bit late for Certan/Dipel but before you do anything I'd give the inside of the box a good spray with one of them. If you haven't got any PM me and I'll post you enough to do the job.
Secondly, you need to remove and/or kill the grubs. They will be deep in the holes in the poly. The big ones you can pull out with a pair of tweezers or stab then with an electrical screwdriver, horrible little worms - there's some satisfaction in getting your own back. I then used a wallpaper steamer with a thin nozzle I made and that got the little ones out of the holes and I hope sorted out any eggs..
Reparing the holes I found the best stuff was car body filler .. sets in minutes and can be sanded back to match the original surface. A coat or few of my propolis varnish rendered the box serviceable again.
Like you .. it's a mistake I won't make again .. a couple of weeks is a long time when it comes to wax moths - A month - potentially ruinous !