The CCD is getting some press - and as usual, some of it is wrong. I'm just
back from California, where the CCD looked at colonies. Jeff Pettis and
Nathan, Dennis VanEngelsdorp, David Westervelt, Scott Debnam, and myself
examined colonies, took samples. Still no definitive answers.
We found colonies with the same symptoms as I and David saw in Florida.
Severity of the disorder ranged from mild to over 60% loss. In one situation,
three holding yards were in the same field, each about .5 mile apart, forming
a triangle.
One yard had collapsed - over half the yard contained dead outs, and about
half of the remaining colonies were more or less gone. None of the remaining
colonies were adequate for pollination. Another yard in same field had some
dwindling colonies. The third yard was fine, bees or all ages, good food
stores. These three yards came from three different states.
As we've seen before, bees in the collapsed yard were not robbing OR being
robbed by bees from the other two, relatively nearby yards -- yet each
collapsed hive had a good 30-40 lbs of honey. In the best yard, the few deadouts (<
1%) that were found, had been robbed out, or were being robbed. Note, the
collapsed yard had lots of food, and had to have had strong colonies at some
time. Food stores and pollen stores were plentiful in the stacks of deadout
boxes.
We did not see as much chilled off brood as in Florida -- but it was cool in
California, without a lot of blossom. Some pollen was being collected.
Looks like most hives had a brood break as evidenced by a lack of capped brood
-- but most colonies, whether displaying the dwindling or not, had newly laid
eggs and young larvae. Looking in the stacks of deadouts -- we did find
brood frames with chilled off brood, as in Florida. So, the collapse occurred
when both food and brood were plentiful.
At a California meeting/dinner of beekeepers (~ 100 beekeepers) last week, a
show of hands indicated some beekeepers had less than 20% losses, good bees,
some had 20-40% losses - but there were a fair number reporting losses of
40-60%, and even a few with 60% or greater.
As in Florida, this disorder is evidenced in many migratory operations, but
it is also seen in non-migratory bees. We keep adding states, the latest
seen in California added Idaho and Utah.
As per the press -- I did not say that any colony had collapsed 'after they
had been put in the almond groves' as indicated by the Palm Beach Post. I
did say that many colonies had collapsed in CA before being placed into the
groves AND that I hoped that beekeepers did not combine affected colonies,
because that could lead to later collapses in the groves. This disorder continues
to look like it may be communicable. Add good bees to bad, you've got a
recipe for additional losses. That experiment has been conducted by several
beekeepers -- in some cases yards recovered, but in about 50% of the cases,
adding good bees to bad resulted in loss of both.
As per shortages of bees -- the meeting that we went to and conversations
with beekeepers seem to indicate that there is NO SURPLUS of bees, nor is there
a severe shortage in California, as of end of last week. Most beekeepers
had placed their colonies and were meeting their contract obligations. There
were reports of a few hundred unplaced colonies here and there (as of last
Thursday).
However, there were rumors of growers who were waiting until the last minute
to get bargain prices on bees -- they may be in for a rude shock. Prices
aren't likely to drop, unless a new batch of bees gets delivered to CA -- and
anyone needing large numbers of colonies may be hard pressed to find them.
Jerry
J.J. Bromenshenk
-- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---
|