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A Tale of Four Nucs ...

240 views 7 replies 5 participants last post by  little_john  
#1 · (Edited)
This is a tale which hasn't got an ending ... just yet. However, I thought the present 'state of play' might be worth talking about.

I made up four more-or-less identical late nucs on the 30th of August (20 days ago). Because of the lateness in the season, I made 'em as strong as possible, each having two frames of capped brood as well as the brood comb having Q/Cells attached, and several good shakes of bees as well as the usual frames of honey and pollen.
Two of these nucs had 5 frames in a 6-frame standalone nuc box (to allow room for the attached Q/Cells - sixth frames have since been added), the other two nucs were 5-frame nuc boxes containing 5 frames placed over a Queenright Hive separated by a single mesh screen. (I didn't have a suitable double-screen mesh set-up at that time)
When checking on them recently, these pairs of nuc colonies are VERY different.

Although a question-mark remains over successful mating confirmation, both of the colonies in standalone nuc boxes are powering away: good numbers of bees, bags of frantic entrance activity with pollen coming in like it's on special offer. Needless to say - but I will - I'm reasonably confident that all is well with these nucs - although I have yet to see any eggs to finally confirm this.

In contrast, the two nucs over the Queenright hive both have reduced populations of bees, and there's near enough zero entrance activity - just the odd bee or two every ten minutes or so. Compared with those other two nucs, I'd say these are going nowhere.
I assume that many bees have absconded down into the Queenright box below, and I can't say I blame them at this point in the season - much better to choose a proven and thus safest option for the Winter.

I'll give the ailing nucs another week or so before 'pulling the plug' on them, but I'll be a lot more cautious how I make up late-in-the-season nucs in future.
'best,
LJ
 
#2 ·
I find better emergence and better mating if there is no other queen pheromone present, unless it is a cell from the same colony (like in supercedure). My guess now is that you don't have queens above so there is not much need for activity at the entrance: heat provided from below, all brood capped with no prospect of more brood, honey not needing much guarding. However, I would give them 5 weeks or so to return a mated queen. Unless you know the cells were about to emerge when you made the nucs.
 
#3 ·
I can't rhyme off all the supposed effects of the additional separating screen layer, but I believe it is not all hooey. Snelgrove was a very sharp bee keeper and scientist.
Yours is an interesting experiment. The mature laying queen's pheremones and ongoing trophillaxis may take away the sense of emergency in the would be, new colony.
 
#4 ·
Hi Frank - I agree with your last sentence, but with regard to Snelgrove ... there is the 'Snelgrove Board' and there is the 'Double-Screen Board' - but they are not the same, although I'd bet my pension that nearly everybody thinks they are.

If "SWARMING, ITS CONTROL AND PREVENTION" 2nd Edition 1935 is consulted, on page 29 Snelgrove describes the Board's construction thus: "No bee escape is used but the hole H is covered by a piece of wire cloth or perforated zinc fastened to the board by drawing pins." You'll notice he says "a piece", singular.

On the next page he writes: "The wire cloth serves two important purposes:-
(1) It allows heat to rise ...
(etc).
(2) From the moment the screen-board is installed a column of bees occupies the super and constantly maintains contact through the wire cloth between the queen and stock in B and the brood and bees in A."

He then describes the process of opening and closing the board's gates in some detail, followed by the following comment:
"In some cases I have substituted a piece of plain ZInc or thin wood for the wire cloth in the screen board at the fourth operation, thus shutting off A from B during the period in which the young queen flies for mating. So far, however, I have not been able to decide that this extra task is necessary."

It was because I knew that Snelgrove used a single-screen board I thought that my doing so would be ok. Whether this was responsible for the absconding or not, couldn't say - but I don't think I'll be trying this (i.e. a single-screen board) again anytime soon. :)
'best,
LJ
 
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