Additionally; is this done on single brood only ?
We winter everything on singles. Not because doubles or one and a halfs are not at least as good, it is just a management thing with us, as we could not get round the numbers efficiently in time having to rake through two boxes hunting for her majesty in spring.
However, HAVE experimented with the same on doubles, even in exceptional cases adding a full new deep, almost akin to a so called Bailey change, in Sept, and so long as you are working with strong colonies it works just as well. do NOT stick the foundation into the bottom box of a double system at this time of year as they will largely ignore it.
And is the syrup Ambrosia ?
No. Ambrosia is seriously overpriced for what it is. We currently use Apisuc, a Belgian product which is very similar, and having done a lot of side by side trials can see little difference between Ambrosia, Api-Invert, Apisuc, InvertBee, and several other types. Only dud was a product called Tetrapi, sold through France, but according to my sources actually made in the UK. More and more buyers are moving over to the Belgian product. I covered this in another post related to fondants.
If you can get feeding at ANY reasonable price buy it in NOW, even stash away your spring feed. Sugar supplies are at crisis point and I heard this morning of one beekeeper being quoted £1260 a tonne for plain white granulated on forward order. those grouching about the odd 20p on a 2Kg bag should take note, and snap up your supply while it is available.
To cover myself for autumn and spring I am taking in 50 tonnes of Apisuc, first batch arrived today.
Another poster wisely interjected about colony strenght for the foundation adding. I am of course talking about normal strength mature colonies returning from the heather, not nucleii still in build up. You can, every week or 10 days, add ONE new comb of foundation into the heart of the nest of a nucleus, indeed we do this to the nucleii we set up in early summer which did not make it up to strength in time to go to the heather (there are actually only 15 left, still in the mating apiary). These build up very well given trickle feeding, and draw comb with the same characterisitics mentioned earlier. Trickle feeding in this sense means to give them a litre or so once a week throughout late summer. very stimulative, and if allied to a modest flow from the balsam (no ivy flow up here) these laggards grow into reasonable colonies for winter, with nice fresh combs in the centre, ready to grow fast in the spring. Qualified of course by mentioning these are 5 frame Langstroth polystyrene nucs of the Tegart pattern from Canada, and are pretty cosy inside.
I am down at Cirencester talking on Friday evening, so if anyone reading this who is attending has any questions about this stuff please talk to me in person down there.
Murray