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The Classroom
by Jerry Hayes
Please send your questions to Jerry Hayes,
17505 NW Hwy 335, Williston, FL 32696
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from the June 2007 American Bee Journal
Q
Bees in History
Jerry, I heard you on the
‘Living on Earth’ program on NPR and I am
interested in what you had to say. I agree that Albert Einstein
was a very smart guy, but I hope you were wrong when you said
that Einstein predicted, “that if honey bees became
extinct, human society would follow in four years.” Human
society existed in the New World for several thousand years
before European colonists introduced the non-native honey bee.
I have some questions that
perhaps you could follow up on. First, I assume that
imidacloprid has been in use for some time (long enough for the
Europeans to realize it should be banned, anyway); if this is
true, why is it only now causing “colony collapse
disorder”? Is it interacting with some other chemical(s),
or has years of use finally brought the honey bees to a tipping
point? Second, while losing honey bees would definitely be a
tremendous blow, how much of the pollinating slack might be
taken up by other bees (and critters other than bees)?
Craig Federhen
A
Craig, thank you for the
great questions and comments. You are absolutely correct in
stating that there was a highly adapted and advanced human
society in the New World long before Europeans gave any thought
to sailing across the sea. And, equally, so there was a highly
developed beekeeping industry amongst the indigenous people of
South and Central America and Mexico. They used a different
species of “bee” we now call Melipona. Its
management is different than the honey bees we use from
European introduction, but it produced honey, and wax which was
used extensively as a food and medicine and in brewing. This
bee is still important in the environment, but is disappearing
as well due to loss of habitat and other reasons. Dr. Rogel
Villanueva Gutierrez (email: rogel@ecosurqroo.mx) has written a
“how to” book in Spanish and Mayan on maintaining
this connection with this bee(s), which is excellent.
Imidacloprid has been used
for several years and yes in Europe it has been banned in some
countries. Its use has become more pervasive as a systemic
insecticide in recent years. Being a systemic, it can travel or
translocate into the nectar and pollen of flowering plants.
Pollinators feeding on nectar and pollen can feed on this
directly and take it back to their nest to store and feed on at
a later time or feed it to developing young as well. The
concentration of this material in nectar and pollen is not
lethal. So, the question is what is the effect of chronic
long-term exposure to these chemicals?
Imidacloprid is now being
combined with fungicides, which increases it efficacy by a
1000% or more. Add in miticide exposure as beekeepers keep the
introduced Asian Varroa mite at bay from destroying colonies,
viruses vectored by varroa, a newly introduced protozoan,
fungi, yeasts, bacteria and who knows what else and honey bees
are challenged. I do think imidacloprids are not good for honey
bees, but I do not personally think they are the “smoking
gun” so to speak. It may be a combination of things that
are intersecting that ultimately is the cause.
As to your second question,
other pollinators also feed on nectar and pollen from the same
sources as honey bees, so what the link is there is unclear at
this time. I can tell you that one pollinator, a bumble bee,
has recently become extinct in California and others are at low
population levels. Honey bees, because of their large
population numbers and their ability to move their nest (colony
or hive) to different locations, makes them the keystone
foundational pollinator species of agriculture. Other bees are
good, but they can’t fill the void completely of fewer
honey bees. I hope this helps.
Q
All Around the
“GMO” Bush...
Hello Jerry – I am
writing to you in response to the Colony Collapse survey
request that was in the Letters to the Editor in the March 2007
ABJ. My
Father feels that the CCD is possibly caused by the genetically
engineered crops using viruses to kill insects. The bees for
the short time that they are alive are carriers of the virus.
Worldwide, wherever genetically engineered crops are
propagated, bees/beekeeping will be affected. Migratory
beekeeping is translocating diseased hives interstate. Drifting
spreads genetically engineered plant pollen locally via
wind. All beneficial insects are at risk.
We (on the island of Maui,
Hawaii) have noticed the same as that mentioned in Florida
— absence of robbing, wax moth, etc. There were no dead
bees in front or in the hive except those robbed by another
colony. It looks as though the bees just left. We do not have
any import of bees, but do have genetically engineered crops
here on Maui. Queens are raised from existing stock. Hives are
not medicated except for a few if American Foulbrood is
present. My Dad’s reasoning sounds plausible since we are
an isolated state/island and are one of the few places in the
world with bees without varroa. And, since we are experiencing
the same as the mainland, the only thing we have in common is a
genetically modified crop. The crops grown here have only
started within a few years and there is a fight to stop them
from being farmed here. I’m worried that these
genetically modified crops will do humanity in since we as
humans and livestock consume these crops and we are probably
carriers of these viruses since they aren’t killing us.
It may be a day too soon that all the beneficial insects that
do our pollinating will be gone. That’s scary when they
say that about every fourth bite we take was made possible by
the bee. Well, let me know what you think.
Cheerio, Courtney
A
Courtney, how in the world
can you write an email like that and end with “Cheerio,
Courtney”? You must have nerves of steel. I have not
heard of any genetically engineered crops that use live
viruses. Genetically engineered crops that carry a gene from
some other organism for a toxin (poison) to kill sucking or
chewing insects is well documented, but not the whole organism.
This toxin could possibly hurt honey bees as well.
In CCD the bees are just as
you describe with no predators or robbing. In our studies the
few bees left have secondary infections from normally occurring
organisms. Their immune systems are breaking down, but from
what? Is it the viruses transmitted by varroa or the varroa
itself? Is it the new Nosema, Nosema
ceranae? Or, is it a genetic
problem, fungus, yeast or bacteria that has become more
pathogenic? There is evidence that some systemic pesticides
used on ag crops can have a negative effect on honey bees. Is
it one of these or some of these or all of these or none of
these? That is what we are trying to find out. If you or your
Dad have some information on live virus use on ag crops, please
let me know. We have heard in Hawaii that some bee losses have
occurred as coffee, when in bloom, is sprayed with chemicals.
Macadamia nut is also sprayed with pesticides that become
systemic and show up in nectar and pollen. It is still all a
mystery. Thank you for caring and thinking about the problem.
Q
SHB
Revisited
Jerry, in the past I have
avoided using anything that would interfere with the pheromones
in a hive. But, I have decided to use Hood small hive beetle
(SHB) traps to lower the count in my hives. Overall, what bait
is most effective? And, is there effective bait that is less
offensive to the bees than other baits? Thanks for your help.
Don Anderson
A
Don, remember that SHB is not
a beetle problem, it is a side effect of varroa or whatever
else is causing your colony to become weak, providing an
opportunity for SHB to reproduce. The SHB is looking for food
for its young to feed on — protein, vitamins, and
minerals, as found in honey, beebread and larvae and pupae. In
SHB traps we have used pollen substitute, hot dogs, peanut
butter sandwich pieces, etc. Soy flour, as found in pollen sub,
works as well as anything.
Q Newbie or is it New Bee Woes?
Jerry, I am new to beekeeping
(4 years) and have just recently subscribed to the Bee Journal.
Honestly, the big draw to subscribe was to be able to get into
your Classroom and leverage your experience to help avoid
problems, as well as solve them (Please keep up the great
work). I live in Illinois, not to far from your old stomping
grounds of Hamilton, IL. My problem is, every two years I am
losing my one and only hive, over the winter. The first time
was a learning experience since I had the hive too air tight
and had moisture issues—a bad learning experience, but a
learning experience nevertheless.
My problem this year was
quite strange to me. I asked another beekeeper this question,
but with no help. When I realized I had lost the hive, I looked
to find that the bees were in a perfect winter cluster. I even
found the queen in the center of the cluster. There was plenty
of surplus honey available in the super above them and even a
frame full of honey two frames over. There was no brood (larvae
or eggs) that I could see; the frames were empty and clean. The
winter this year started out warm and wet and then around
January turned cold (dipped below zero with no wind chill) with
several inches of snow, and, as you may recall, winter in
Illinois can be quite windy. I stack straw bails around my hive
(except the front) to help fight the wind and leave about 1 - 2
foot of space between the hay bales and hive. I am at a loss
Jerry. I medicate my bees every fall and try to do the right
things, but with no luck. I would like to increase the number
of hives I manage, but until I feel confident of doing the
right things, I will stick to my one.
Brian G. Nordmann
A
Brian, it gets kind of
discouraging doesn’t it sometimes? Thank you for the
Classroom compliment. We are all in this together. I appreciate
it. Winters in the Midwest can be incredibly variable, as you
well know. It is a pretty harsh environment. Temperatures in
winter can be 40 degrees F. and 6 hours later it can be 0
degrees F. With no mountains or large lakes to modify
temperatures, fronts can move in, through and across, easily
bringing drastic changes. You have to be tough to live in the
Midwest.
I think that your situation
is unfortunately fairly typical at the end of winter/early
spring where there is an intersection of several things. Your
colony may have stored honey left, but still starve to death.
The cluster at this time of the year may be as small as it will
ever be. Bees have died over the last six months or so of
winter and have not been fully replaced. The warm periods you
have had forced the bees to eat a lot of the stored honey
around them. Then, you had one of those Arctic events that take
place where you live. The cluster was already small and having
a hard time thermo regulating (keeping warm). Now it got so
cold so quickly that the cluster couldn’t generate enough
heat to move to honey sources. They stayed right where they
were and died of cold and lack of food, even though food was
relatively near in your eyes. One can be the best beekeeper in
the world and have this happen. I would select queens from
northern producers and be sure as late summer comes that pests,
predators and diseases are under control, and that there is 60+
lbs. of honey available. Keep the colony in a southern exposure
and out of direct winter winds and then cross your fingers.
Having only one colony dooms you to failure at some time, so
try for two. Then, even if you lose 50% of your colonies, you
still are in business. Hang in there. If it were easy,
everybody would be doing it.
Q
Student
Interview
Hello Mr. Hayes, thank you so
much for meeting with me the other day. It was very helpful to
learn from your expertise. I want to get clarification on what
factors come together to ultimately stress the bees out. A
direct quote would be even better! You mentioned cramped living
space, insecticides for mites, shipping them around, unnatural
feed, and external factors such as pollution. Please let me
know if I am missing anything or putting words in your mouth!
If you do want to provide a direct quote via email that would
be wonderful! Thanks again, you’re a great help.
Katie Adamson
A
Katie, let me see if I can
add anything to our conversation. Honey bees are not a
domesticated animal that we would see on a farm. Yes, honey
bees have been modified by breeding to be a certain color or
have certain traits that can be selected for, but they are
still wild animals that only tolerate us because we can provide
a home that they can live in. If they decide that their living
conditions are not being met, they can leave and live just as
happily in a hollow tree or your attic. I said all that because
man has developed this “hardware” that allows us to
manipulate a colony of honey bees to his/her advantage that
within certain parameters, honey bees tolerate and live in.
According to data, the cavity size of the
“hardware” that beekeepers use is incorrect. It is
too large for normal conditions. We then force honey bees to
maintain a population much larger than is natural in this
really large box in order to maximize honey production.
Now, add in introduced mites,
pests and diseases, environmental toxins, agricultural
chemicals, a shallow genetic pool, substitute and supplemental
food replacements that beekeepers use to keep inordinately
large honey bee colonies large and then load them on a truck to
take them hundreds or thousands of miles away.
I don’t know what honey
bee stress is, but this may be it! Are honey bees, a very small
organism, the canary in the coalmine that is alerting
“us” that not only are they succumbing to multiple
stress factors, but that other animals or humans may be next?
Should we be paying more attention? Sorry to be so wordy Katie,
but I didn’t know how to shorten up what I wanted to say.
Q Go Ahead and Check Them
Hello again, Jerry. I
recently made splits and introduced queen cells. I’m
fighting the urge to open them up. I read that virgin queens
can spook easily, start running and then be stung to death. How
long should I wait for the first detailed inspection? Keep up
the great work with your Classroom.
Sam Atsaides
Rhodes, Greece
A
Good morning, Sam. Generally,
if the weather is good, virgins, once emerged, will have mated
and will be functioning queens in 10-14 days. We open up
colonies all the time with virgins in them and it probably is
not a great thing, but since virgins are not recognized as
anything because they do not have a pheromone signature, it
does not seem to matter much. Just be careful and cautious, so
you don’t accidentally kill her during your inspection.
Q Don’t be Afraid to Look
My name is Patrick and this
will be my second year of raising bees. I failed my first year
on keeping my hive alive due (I think) to excessive time spent
on checking and maintaining the hive. I am still going give it
another try. Question, how often should I check on the hive
process through the year? What time of the year should I check
more? Thanks. P.S. do you send out any info for us who are
interested in the hive-raising hobby?
Patrick
A
Patrick, I am sorry that you
had problems that caused you to lose your first colony. Having
two colonies sometimes allows you to have some flexibility if
you lose one. I think in the article (Countryside magazine)
that I mentioned companies that supply equipment and
educational materials in the form of books, videos, catalogs,
etc. Your State most likely has beekeeping organizations that
can help you and check out the web and your local library for
“How-to” information.
Having a colony relatively
free of pests, predators and diseases with plenty of stored
resources is the path to success. The opposite causes colony
death most of the time. Learn to check your colony for signs of
how well the queen is doing and for the pests and disease
issues that weaken a colony. For a new beekeeper learning to
visually inspect and manipulate a colony every week is not too
much. Like everything else, the only way to become a better
beekeeper is to be proactive and with various resources
available, this practice is more effective every time you do
it.
Q
Overwintering in Iowa
Jerry, 1. How would a 1
1/2-story colony do with overwintering in Iowa? 2. How much
honey can you harvest from a split? 3. Why are you not supposed
to use plastic and wax foundation in the same colony? 4. What
is your favorite bee breed and why? 5. I had two hives die last
winter and I blocked the entrance, but not the top cover. So,
my other bees (which are Italians) robbed the hive. I now have
the top blocked, but when I install my package bees this
spring, will robbing still be a problem? And, will the Italian
colony be mean? 6. Should I feed pollen patties to package
bees? Will it help them that much?
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