Being a bit of a smartarse, (what do you expect? I'm a beekeeper!) I've been quite selective in the range of accepted beekeeping practises I have adopted. This has resulted in the demise of my colony of Buckfast.
They went into winter with an eleven-frame, BS deep with a matching shallow of honey stores above. There was a bit of brood on a couple of those shallow frames at the last time I checked inside, which was late September/early October. I have been hefting them quite frequently but I think I've been deceived by inexperience as the hive has felt heavy throughout winter; now dismantled, it feels very light.
I
had since decided that feeding was not one of my gambits (mind now changed
@Earthboy ), but at that time the colony did get the benefit of lots of sugar syrup. This was from a late June nuc, so I didn't take off any honey. Our ivy crop is ridiculously late, so I suspect they also missed out on that. I mentioned on here a couple of weeks ago that the Buckfast had been trying to get into a neighbouring hive; I now realise that was because they were starving.
A couple of days ago I had a pile of dead bees in front, showing symptoms reminiscent of CBPV and my suspicions were increased when I had a quick peep into the top and could see bees with shivering wings. By this morning they were dead. Between the lot of you, if I'd listened properly, you could have saved me from this. But the problem is that I put together the jigsaw of advice and experience in a way that looked right from the back, but turned over.....the picture didn't! There was zero brood, pollen or honey...this had been declining for ages.
Conclusions:
1. Buckfast are very hungry and although I feel the loss, now I will stick to my "locals" and caught swarms.
2. Maybe it's not so smart to let bees build up as much as I did by going excluderless with double brood or brood and a half; in future it will be one deep with a QE.
3. The worry I have about having sugar in next season's honey is probably over-concern....there'll certainly be no sugar in it now!
4. If they can starve, even without removing honey stores, they obviously benefit from being stuffed with sugar in the Autumn and maybe during winter.
5. My bees are very insulated; going back to a thread the other day, I think it was
@gmonag who said he believed insulated bees consumed more stores...that seems to be the right assumption. I think the bees carried on multiplying until very late in the season and consumed a lot of their stores.
6. I'm staying positive, using some dirty old frames which came with the original nuc as the basis for bait hives. I also now have some drawn frames for nucs and honey supers.
If you've read this far you'll see that I have learned something from this disaster so I would appreciate not being beaten up. But any addditional observations or advice are welcome.