I strongly disagree with those who 'have not experienced' the horror of
full-blown CCD and their bad-mouthing of commercial beekeepers, and the
perpetuation of myths. Try telling a man who lost 90% of his bees that it all
because he doesn't know how to keep bees, or its because he's a commercial
beekeeper; especially if its a large scale beekeeping operation that has been
successfully keeping bees for decades, doing everything by the book, and
yet the bees suddenly die.
For example, one local (doesn't migrate) bee operation in CA had good bees
mid-Dec, lost almost all by Jan 4. And a large, very well known beekeeper,
who is very active in bee organizations, with a migratory bee operation
had differential losses depending on which states his bees were in, with a
total loss of 50%, or 10,000 colonies. You can see a picture of the stack of
pallets on Kim's Daily Green blog.
For any of you whose bees have not had CCD, its just luck.
I've just been to CA, looking at and sampling everything from
surprisingly strong to fully collapsed bee operations, and I've been talking to
beekeepers there, and Paul on Vancouver Island. I also saw collapsing bee
operations in Fl after the ABF meeting this year.
Vancouver Island is a prime example of reports of strong bees in the fall;
now with fully collapsed, empty boxes (NO dead bees on the bottom boards,
usually ending with a queen and a small remnant of bees, or nothing at
all).
That's not overwintering die-off, at least, not as I've seen it.
The descriptions and signs are what I would call CCD, despite statements
that CCD has not been confirmed in Canada. I'll go by what the beekeepers
describe - if it walks like a duck, quakes like a duck .... They saw it now
and reported in our 2007 surveys. I was told by one official, we don't
call it CCD because we don't know what it is. I would like to point out,
that's why we (the working group) called it a DISORDER, not a disease.
As you all know, I was one of the first to look at CCD in 2006/2007, making
trips to east coast and then to CA before and during Almond Pollination.
The situation in CA this year is the same, if not worse, than in 2006/7.
It just didn't get media coverage.
Also, it appears that B.C. and CA are on the same time table; since both
had problems in 2007, and again in 2010. Many beekeepers have told me that
they think there is a three year cycle, and I've seen enough anecdotal cases
to make this something to take seriously.
And Brian, once again it is NOT solely in commercial beekeeping operations,
nor is it only beekeepers who don't control mites and Nosema. Just
because you haven't seen it, nor your neighbors (which I know is not true - I've
gotten samples from MN beekeepers, large and small over the years - so I
don't agree with your assertions), doesn't mean it doesn't exist, or doesn't
exist in smaller bee operations.
Nor are any of the sweeping statements true, despite your claims, I can
assure you that I've seen it first hand in migratory, local, large, small,
organic, non-organic, and poorly managed, as well as well managed beekeeping
operations.
I will say, lots of beekeepers won't admit to having it, not to the growers
nor to other beekeepers, especially among the mid- to small operations.
The big operations often can't hide it - they need bees to make their
pollination contracts. So, when they suddenly start looking for hundred to
thousands of colonies, people figure out what's going on in a hurry.
As per Eric's note, as an old dairy farmer, I know that you can get more
milk out of a cow if you feed her an overly rich diet and you can push the
length of time that you milk her. But you can't do that for long, and you
have to give her a rest before calving, or else she will more or less burn
out. So, yes; you can push an animal past its limits; and maybe we do some
of the same with bees. But that's not necessarily CCD, although it may
stress them enough to make them more vulnerable.
Eric reminds us that maybe we're pushing bees hard. But, we've been
practicing some pretty intense migratory beekeeping for some time now; yet I saw
some big migratory operations whose bees were really strong - so I'm not
ready to say its simply that we over-work the bees.
I am beginning to wonder whether we need to provide a 'rest-period' for the
combs. Smoot bees in MT, once again this year, scored lower on mites,
Nosema, viruses and viral loads than the majority of bee colonies that we have
sampled since 2006.
The one Smoot practice that stands out is that they start from package
bees each spring, sell the shakes every fall. They then clean up the combs
and boxes and store them from Oct to April in an unheated warehouse. Any
pathogen that needs a host, and any pathogen that is sensitive to cold would be
gone by spring.
Even though the package bees come with all of the pathogens commonly seen
on the west coast, by the time the bee populations turn over and expand, the
pathogen loads drop in their bees.
So, I wonder, is the bee equivalent of drying up a dairy cow before she
calves - letting the combs go empty of bees for a while? (with a little help
from the cold?)
Jerry
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