We had a SHB problem this past summer/fall and I followed the excellent advice from the flow hive video about using picnic table cloth. It worked great at reducing SHBs in the hive. But, I may have stumbled onto a better solution. There are several videos on Youtube by Jeff Willard about using aluminum strips painted with Neverwet around the bottom board of the hive. I haven’t seen any discussion about this on the forum. So, I thought I’d post this. I am new to beekeeping, but his idea seems sound. As long as the hive is sealed up, the only place those beetles can get in is through the entrance. If the entrance is lined with something they can’t grip, they can’t get in.
Here are some of his videos:
I went ahead and modified a bottom board with these flanges for my hive. Any thoughts?