I like to use my finger...just a little SMUSH!
They will completely, absolutely, positively destroy a hive. What folks are saying about not leaving too much territory for the bees to guard and patrol. I find a couple usually when I go through my three hives...they're normally on top of the inner covers or actually on the outside of the hive bodies. I mash'em when I see 'em. They are naturally going to be attracted to bee hives so seeing them shouldn't create panic or anxiety but should reinforce the understanding that we need to be diligent in watching and managing our bees. Wax moth can hit quick, though, in my experience I lost the hive over a two week span between inspections.