All
I'm changing the subject -- bees dying implies dead bees at/near hive. I
saw clean bottom boards, no piles of dead bees anywhere. Beeyards were
uncHello Jerry & All,
Joe had lots of comments, questions:
<I wish to place colonies with associated absconding type symptoms in a
separate category, and consider for a moment only colonies that tend to have
symptoms of small clusters with egg laying queen>
These are not different observations. The small clusters with egg laying
queen appear to be the remnant populations following absconding. These were
all colonies that in a matter of a few days went from populous, with all ages
of bees, to a remnant with very few bees -- all young.
<In your opinion, do you think it is suggestive of broodnest worker
depletion due to intense forager recruitment (reassignment in division of labor)? >
<Instead, the lack of old bees suggests an intense outward forager
recruitment behavior.> These colonies are struggling to meet all of the
requirements -- there are foragers, and they also are very young.
<signs of fresh nectar near the brood, (indications of very recent
foraging)? ,,,,
and proximity and quantity of very recent pollen? Were ‘old pollen
stores’ located within the broodnest area (apx distance of 3 or so frames
each way) near the small cluster tending to be depleted?>
We saw everything from copious stores of pollen, nectar, honey - to
shortfalls. But none of the variations on this theme explain the losses -- we had
yards with lots of old stores, yards with abundant new stores, and yards barely
making resource needs -- all displayed the same syndrome.
*<Brood chewed out, emerging adults stuck in cells, some with tongues out.>
The chewed out brood appeared healthy - not rotting, discolored. Bees heads
out, etc.
All seem to be more an artifact of insufficient bees to tend, feed - than of
a disease per se.
Also, there often had been a brood break, but recoverying colonies had all
stages of brood.
<I know that you stated these bees were “working hard to re-establish the
colonies”. Please define more clearly, does this statement mean there
was a ‘recovery’, in progress? In other words, were they on the upswing?>
<Do you mean, working hard to reestablish the colony that is best
described as in decline, or on a down swing?>
We saw both -- 'survivor colonies' that appeared to be still going downhill,
'survivor colonies that perished in the last week AND 'survivor colonies'
that were slowly coming back -- brood, foraging, etc.
My opinion, this has NOT played out yet. Whole yards were wiped out, other
yards are still in the downward spiral, and some colonies are coming back.
Obviously, the ones on the downward path, and any new locations are of
interest - 'catch it in the act' so to speak. Otherwise, as Bob Harrison
commented, we were mainly conducting autopsies. Need to move to diagnosis.
Since Monday, I have reports of this having occurred in Ohio and
Connecticut. We really need to backtrack this to its origins, track its distribution
regionally, maybe nationally. My concern, with the high rental prices for
almonds, east coast beekeepers have been moving bees to California and back --
fundamentally changing migration routes. One of my team will be in California
this week to check out report bee losses - don't know if its the same
syndrome or something else.
We also need to get to Texas, where we have further reports of bee losses.
The list can help us locate beekeepers with this problem (over the past
year). Some of the losses occurred as far back as August, maybe even earlier in
northern states.
Jerry
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