Help! Critters have invaded my ukulele.

I've just finished my second build. I'm using Tru-oil has a finish. After the 4th coat, I hung it up to dry. The next morning I found a small pile of sawdust on the bridge and a small hole in the sound board. Google is our friend and I learned that I have powder post beetles infesting my uke.
I've had several suggestions to deal with problem such finding a tented house and throwing uke in there for a day and microwaving it.
I thought i would ask some real ukulele builders for a treatment that would not damage a nearly completed instrument. Thanks.

Yeah, the little bastards are the worst. I feel your pain. Below is a post from awhile back might help.

http://forum.ukuleleunderground.com...-Bug-Ate-My-Uke&highlight=powder+post+beetles

Those sappy joints always look cool but remember, most bugs can't get their teeth into the heart wood....

Those sappy joints were not my first choice, but I was in a ukulele building class and had to go with the black acacia that was available. That or make another mahogany uke.