lets see, if we can find out why they died
1)did you find the dead queen
2) were the bees still in cluster
3) any bees with heads in cells
4) supers was the Qex on
5) excluding the supers, where was the bees position to stores in the brood
6)feeding how did you feed them
7) what varroa treatmnet did they have and when
Been today to completely empty the hive!
In answer to your questions:
1) no, didn't find the dead queen, but did find where all the bees had got to.....they were all at the bottom on the floor
2) most bees were together, but quite a few spaced out all around the hive
3) yeah, quite a few bees with just their bums sticking out
4) queen excluder was definately off.......I checked that last year
5) the main lot of bees were at one end of the hive.........the stores that were left were sort of in the middle/towards the other end
6) fed them with fondant made from recipe on here........but I know I did make 1 major mistake with that........I was feeding it through a syrup feeder (I didn't realise, thought that was right!), I was corrected by the local beekeepers at the beginning of the year and took it out and just dropped it straight on top of crown board........do you think that's what killed them?
7) the guy I got them off said he'd done the varroa treatment and that would be sufficient for the winter
There was a little bit of mould too........not sure if that's grown since they've all died or not though.
The frames on the side where the majority of the bees were are quite dark, all the drawn comb is dark........can't remember from the course I did if that's normal, I'm presuming not!!!!
I'm throwing all the frames out and buying new. Am I right in thinking I just need to get a blowtorch to scortch the inside of the hive in order to use it again??