I saw small hive beetles while checking my TBH about 15. I smashed them when I could. I'm a newbee and my hive has swarmed a few times so their population isn't the greatest. I have a laying queen. Anyway what's a good natural treatment for my TBH? I read DE sprinkled under the hive and then watered would kill the larve. Is that effective? I've tried swiffer sheets on top of the bars and leaving little gaps for just SHB but that caught zero beetles. Thanks!