I know this is an expensive proposition, but it seems that using a MAQS on a stack of empty boxes with drawn comb might be effective against wax moth. I just read elsewhere on Beesource an article about the various treatments to deter wax moth and formic acid fumes was one of them. I want to avoid using paradichlorobenzene, and have a bunch of drawn comb from brood nest I'd like to save till later in the season. Storing it outside doesn't seem too appealing to me.