International Beekeeper of Mystery
- Mar 30, 2011
- Reaction score
- Hive Type
- Number of Hives
- Too many - but not nearly enough
It would help with the wasp situation. But I would be concerned it may collect more poo and hairs than a mesh floor.Given wasp season is rapidly approaching, would a potential modification of this method work: rather than simply having an open floor which wasps may at some point fly up into, could the box being used to create the long drop be fitted with two steeply set boards forming a V shape (open at the bottom of the V)? This would narrow the gap significantly so make it easier to defend but maintain the dead bees being dropped out under gravity.
Hi Erichalfbee and jenkinsbrynmairDavid Evans says there is no link between tracheal mite and CBPV
Completely agree.Hi Erichalfbee and jenkinsbrynmair
thanks for the Link to "CBPV as a serious emerging threat to honey bees", I had already read it with interest.
A quick glance at "Honey bee pathology" (Bailey et al.) confirms that the virus can be spread by injecting, feeding or spraying the bees with it, this is what jenkinsbrynmair has described already, as a possible means of the virus spreading inside the hive once it has become established within the hive. It is noted that infection through injection is most effective, (at least 10000 times more effective), and that Acarapis woodi pierce the tracheal walls with their mouth parts to feed on the haemolymph...
Here's a direct quote (brackets and emphasis added for clarification), "investigations of sick colonies found severely infested in summer with (Acarapis woodi) mites showed that, whereas both sick and apparently healthy bees from the colonies were infested about equally with A. woodi the sick bees only were all infected with chronic paralysis virus (CBPV)", that means that it was ONLY the Acarapis woodi mite infested bees that had CPBV. Now I know what you are about to say, correlation is not causation, you're right, and in the spirit of full disclosure (and to argue against my own arguement...)
Bailey's opinion of a relationship was, "(Acarapis woodi) parasite is also widespread and enzootic (endemic), but is independent of paralysis (CBPV)"
I had thought that it was accepted that there was a co-existence between these mites and this virus, (not a cause and effect, like varroa and DWV) it appears I was wrong. And this interesting observation made by Bailey has been dismissed.
HOWEVER, some years ago when I had just started out beekeeping, I was in the No Treatment camp, at the end of the second year my dozen hives all had large numbers of flightless bees with K wings, all symptoms of CBPV, not to mention a lot of Varroa (but surprisingly not that much DWV). I had read about Acarine, etc. etc. and believed bees only had CBPV with Acarapis mites, so I treated for Varroa (I read it would affect A. woodi as well) and in about 10 to 14 days, the flightless bees and the K wings were virtually gone.
All I'm saying, whenever I saw what I believed to be CBPV, I treated as if for Varroa, to kill of the Acarapis woodi mite to get rid of CBPV, it worked for me, but I could have got lucky...
Hope I haven't caused confusion / annoyance, etc. I'm just adding to a discussion, with my opinions / observations
I've no idea, doubt anyone has left them like that for an extended time, but I wouldn't have thought so - floors are just a human concept anyway - had a feral colony near one apiary (sadly they died out this spring after surviving for at least five years) in a hollow oak tree which, together with a small top entrance was totally open at ground level (you could look up and see all the comb)Any chance of bees absconding once they have recovered if left without a floor for too long?
This is broadly similar to a colony of mine this year. However they managed to produce a scrub queen which mated with a good brood pattern and the CBPV stopped. The colony is still small in bee numbers but with 7 frames of brood and has thrown up one supercedure queencell which I have destroyed. I have some mated queens available so I will remove the scrub queen and put one of those in.I wish I had tried the remove floor approach.
In April I had a WBC colony on double brood (16 frames of brood)+ 2 supers. They went from looking great to piles of dead bees in a couple of weeks. I tried a variety of solutions as advised by club and BI; re-hiving into a clean hive , regularly clearing the hive floor, shake out - all failed. By June there were still plenty of bees (Q had kept up with the huge losses) but there was little in the way of stores compared to my other hives. Clearly the foragers were dying off early. Eventually they went queenless (? why) and I decided to exterminate them as they seemed doomed (unable to build up stores) and were a risk to my other hives in my garden- I dont have an "isolation" apiary only the far side of the garden.
Maybe an open floor would have helped - without trying I dont know. But next time I will.
Just realised bees and wasps can probably chew through that pretty easily if they want to, hopefully they might not feel the desire but...can you see any problems with this or better ideas?
Collects and somewhat hides the dead while keeping out wasps etc (ok, need to tape over that corner gap).
Virtually no cost, standard parts to hand, 5 minute job.
An improvement would be a folded board that makes a flat-ish funnel guiding all to the centre point but I have no spare material to mess and folds angling across corrugations are awkward. Maybe in card...