Thanks for the responses
took them out of the incubator and
Itore open 20 cells last night. Only 2 had anything but mush or just a dried stain on the cell. One of the 2 kinda looked like the google pictures for BCQV
EFB is possabuilty as its on the uptick in this area, but I am not seeing it in these hives. For more back story I had an outbreak in the main yard and followed the old advice "waited for it to go away when the flow starts" when that didn't work I shook swarmed when that didn't work I turned to OTC. On top of summer losses from not using OTC as my 1st line, I took winter losses on 20 of the 26 OTC treated hives.. this "new" EFB sucks.
I wish I had had the problem of EFB + hives not making cells. I was running QL starter/finishers last year (and did a lot of placing grafts in nucs as 48-hour cells) by putting the queen in a nuc. The mother hive looked fine at the start, but I noticed a strong EFB outbreak in one of the nucs (after a few batches of cells).. I hadn't kept notes.... yep it got everywhere. But I was able to contain it to that yard. Every yard has its own tools and I use disposable gloves
Spring build up in what was left this year was slow, 2 of the 6 are on OTC as they are showing symptoms, So I picked the best I had in an out yard.
A loose virgin could account for the issue in the split, and was my 1st thought before the rest of the issues droped, but the cell builder (mother hive) did the same thing, they made wild cells in the 1st round of cell building, and when I went in to cut them out they were gone. Seems this line likes to tear down..
Today was day 10, put the cells in roller cages in the builder. Popped open four of them, 2 looked good, 2 were brown goo, didn't have the presence of mind to rope test them, guess I will on those that don't emerge. So the incubator was part of the problem, but those were back...not brown.
shook off all of the frames to take a hard look. Brood was a tad spotty. No scales, sunken or perforated cappings, yellowed, twisted or deflated larva. Saw one cell of chalk and 3 upturned larvae that looked sacbrood ish, not EFB ish .
Maby time for a test kit, I just am not seeing anything like this in the worker brood.....
________________________________
From: Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]> on behalf of Frank Lindsay <[log in to unmask]>
Sent: Tuesday, June 11, 2019 10:24 PM
To: [log in to unmask]
Subject: Re: [BEE-L] queen cell losses/failure to re queen
When making a split to produce emergency queen cells. Remove all capped cells on day five. These were made from larva which you don’t knows how old they were. Uncapped cells are from eggs. Better queens.
Very important to have all the nurse bees full of pollen so they produce heaps of royal jelly. Mash up a pollen and honey frame a couple of days before making the split. Dribble over bees.
Tearing down cells. Sounds like you had a virgin small queen in that hive as the bees tore down the cells. They don’t tear down dud cells.
We used a swarm to draw out queen cells after caging the queen. Produced 29 beautifully cells out of 30 grafted. All turned out to have black queen virus (black tip).
Such a disappointment.
We had used the dona queen before so must have come from the swarm bees. Lesson learnt by us. Keep swarms separate. Use your best colonies to produce cells. They are healthier.
Frank Lindsay
New Zealand
Sent from my iPad
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