I posted a couple of months ago that all 9 of my hives made it through the winter. Now I feel really stupid because I've lost 6. Seems to be very recent. All were in double deeps, still had leftover honey and had been packing in new. All had unsealed brood and a couple had some sealed brood. In three of them the bottom boards were covered with dead bees with some scattered small pockets of dead bees with their heads in the cells. In two of them there were just no bees there. The sixth one I'm not sure because I got tired of looking. This will be my fourth year. I don't treat. All the bees are local mutts or from an apiary that doesn't treat. Any ideas? And how do I protect all this comb from wax moths?