« Last post by Acebird on September 22, 2016, 10:00:15 AM »
I think you should do it every day of the year.
We rescued a hive last year that almost slimed.Interesting never seen anything like it. I use the apithor trap if the bees struggle to cope with them.
I bought some of these http://beetlebaffle.com/ and fitted them over the winter. So far we haven't seen any SHB (may one or two) in the hives with this device fitted. the traps are mostly empty too. The principal is the beetle can't walk over the lip in the Aluminium strip and won't fly in the hive.
Speaking to the manufacturer/inventer (he will talk for hours if you let him) the idea is to create an unpleasant environment for the SHB as they are stuck on the bottom board with the light and soon leave to find a better hive to live in.
Did you receive your queen early this year? I had a batch of queens that I found didn't seem to be mated as well as others that I've received previously - I've had over 100 queens from them and generally quality is marvellous! one shipment I had though was not great.I got them November last year.