hello to all. thought i would share my fight with the shb. i started beekeeping last year with 3 nucs and lost 2 to shb.it seamed that i could raise more shb than bees.the one that made it through winter was in a 10 frame box with a oil trap under neath. when i inspected it in march there were some beetles. last fall i learned of a oil recipe to use in the hive that kills hive beetles and mites. i used it and it works. i inspected my hive today and only saw one beetle and the box was completely filled with bees and brood. if you are interested in the recipe here it is. 16 oz of canola oil with 1 oz wintergreen oil. soak a paper coaster until it absorbs the oil. shake off excess and lay in center of the hive above the brood.in about 10 days the coaster will be gone and the beetles will be dead and the bees will clean house.