Not to me does it sound good!
In fact see opposite for long-term effect!
First question: Why are bees cleaning it out and researchers circumventing the bees cleaning of it,to keep for treatment instead? Why not following the bees needs/actions?
Second: It might not be a chemical, but it is still a man derived treatment and seemingly out of cync with what the bees seem to want to do. Again, why the bees wanting to clean out? Seems to me would want to know that first for bad effects prior to putting industry at stake if bad call for using!!
Anyway, just my 2-cents!
Dee
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