Before provent-a-mite came on the scene, Sevin Dust was the drug of choice for mite infestations. It's a horticultural product that kills plant mites. Also works on snake mites. The usual application was to put some of this dust in an old sock or a bag or something with a loose weave and pat it all over the inside of the cage. This would coat the inside of the cage with the sevin dust which kills the mites. No water bowl in the cage. Like I said, this is an old remedy and might not be as safe as others on the market right now, but it was used effectively for many years before the newer products became available.