I lost my bees in 2016 and just started by catching swarms last year. I split the swarms this spring and now have five well producing hives. I have gone through the hives every two weeks and I have NO HIVE BEETLES in any of the hives. This is phenomenal to me as I have fought the little buggers for 15 years. Beetles are the subject of many discussions with fellow beekeepers in the area. The only thing I'm doing different than in past years, I have NO traps in the hives, NO mineral oil anywhere around the hives. Just want to throw that out there.