Pollen Traps
Extracts from Bee-L
Lloyd Spear
email@omitted.anti.spam
I think I have pretty good information on the design
history of today's bottom mount traps that I will share.
I will also give you some thoughts on the other traps
available.
I believe that the OAC trap is close to the improved
design bottom trap made by V. Shaparew during the 1970's.
Mr. Shaparew was a nuclear scientist who immigrated to
Canada from Russia. Mr. Shaparew was a beekeeper and
decided that equipment could be considerably improved by
incorporating known principles of physics, most
particularly having to do with air flow. He designed or
re-designed several items of equipment, two of which
continue today. Those are the bottom mount pollen trap
and the Conical Bee Escape Board.
Concerning the pollen trap, Mr. Shaparew's
improvements were:
- One way drone and bee escapes
- Improved air circulation to reduce the amount of
pollen deteriorating or molding in humid
conditions
- Relief of congestion in the pollen stripping
area
- An easy and effective way of turning the trap "on"
and "off", without heavy lifting of the brood nest and
supers.
- A system to largely prevent rain water from
entering the pollen collection tray.
The OAG trap largely or wholly represents Mr.
Shaparew's design. After several years of use, beekeepers
made modifications (improvements) to Mr. Shaparew's
design, which resulted in the traps first offered by
Stauffer's and, with further changes, in today's
Sundance(tm) trap. There are many changes from the OAG
design, some are minor and others significant. In
summary, these are:
- The weak spot of the Shaparew design was the pollen
tray, which lacked proper ventilation and was prone to
rip when scraped with a hive tool or placed on a jagged
rock or branch. The Sundance(tm) trap has a stainless
steel screen. In demonstrations, we scrape this, hard,
with a hive tool to show that it will not cut or
rip.
- Much improved drone and bee escapes. The escapes
cannot be damaged by skunks, falling hive covers, etc.
or get clogged by dead drones.
- A trap cover that prevents almost all hive debris,
including dead varroa, from getting into the pollen
drawer.
- Improved design of the stripper area to more evenly
spread the stripped pollen across the entire pollen
tray, therefore increasing ventilation.
I know of three other bottom mount traps offered
commercially. As a pollen collector, it is clear to me
that these are not made by a beekeeper who collects
pollen! Each has major deficiencies involving:
- Ventilation to prevent pollen deterioration and
molding
- Congestion in the stripper screens that
significantly reduce foraging
- Drone escapes
- Trap durability/life
- Hive debris falling into the collected pollen
A pollen trap is a tool, and one that every beekeeper
should have. Like any good tool, the Sundance(tm) is
designed to do the job with high efficiency (while
protecting the integrity and health of the hive), and
will last a lifetime. Like other tools, similar (but not
at all equal) models can be purchased for considerably
less, and each is almost certainly worth the money paid,
and no more. If measured in years or in pounds of pollen
collected, we believe the Sundance(tm) trap is
considerably less expensive than those with an initial
cost that is 50% lower.
The trap sold by Stauffer is excellent. However, as
mentioned by others, the wait time is very long. The
proprietor is Mennonite, and of a conservative sect. They
use horse and buggy, no electricity and no gas or diesel
powered farm or wood working equipment. He has a very
large, young, family supported solely by the sweat of his
brow and perhaps fewer material possessions than any
member of this list.
However, I think you will find his prices have
substantially increased and may not be significantly
lower than those for Sundance(tm). I hope so, as it has
been clear to me for some time that he was selling them
at less than his cost...assuming that a reasonable value
was assigned to his time.
Several list members have asked for plans, and none
have been forthcoming. Perhaps none will be. I have
received numerous inquiries concerning whether the
Sundance(tm) design can be duplicated for private use,
and willingly agree. I suggest that persons so inclined
purchase one Sundance(tm) trap, and disassemble it to
copy. Although we use glue as well as nails and staples
to assemble, the trap will come apart relatively easily
if one is careful.
Once disassembled, one will discover that the trap has
3 major sub-assemblies, and a total of almost 40 separate
parts. To insure accuracy and consistency of manufacture
and gain speed, we use over 12 different assembly jigs.
We do not have any plans or drawings, as the design has
evolved over time. We rely on individual knowledge, and
our jigs, to produce a consistent product.
With regard to the price of a Sundance(tm)
trap...Those of you who decide to make one trap will find
that it takes well over 40 hours. If you then decide to
make another five traps, and cut all the parts at once,
and make up sub-assemblies and jigs, you may get the time
down to 40-60 hours for those five traps. Further
manufacture will advance the learning curve, and further
reduce the time per trap. However, be prepared to be
shocked at the material cost, which will not materially
decrease as you make more traps at one time.
Depending on wood and wire supplies, we cut enough
material to make 50-200 traps at one time. We assemble
100 traps at a time, for the simple reason that we do not
have storage room for more. That means putting together
300 sub-assemblies and then making those and other parts
into the 100 traps. If we made 10 or even 25 traps at a
time, at our present price, we would lose money on every
one. So, if we are going to keep the price of a trap
within reason we have to make and assemble a lot at a
time. In order to do that, we have to sell a lot. In
order to sell a lot, we have to sell through dealers, who
have the catalogs and staff necessary to sell retail.
Surprise, in order to sell through dealers they have
to make some money! They have to advertise (which we do
also), pay for phones and electricity, catalogs, clerks
and warehouse people, cartons, etc. All this adds up, and
results in today's prices.
I don't mind telling you that in 2000 we just broke
even on Sundance(tm) traps. I hope we will do better in
2001. But we also put several hundred wonderful tools in
the hands of beekeepers. These will last a lifetime, and
that makes me feel good.
Finally, just a few words on the front-mount traps
offered by a few dealers. BEE CAREFUL. You will
principally get just what you pay for. At a recent
meeting of the Ohio state organization, one beekeeper
told me he purchased 25 such traps, and then spent over
100 hours on carpentry to get the traps in decent shape.
While every beekeeper should collect some pollen, they
are in a Catch-22 when it comes to buying their first
trap. They may be tempted to pay less than top price
"because I really don't need to collect that much
pollen", but don't have enough experience to know what
features to look for and what flaws to avoid. Many end up
first buying an inexpensive trap, being disillusioned,
and then buying a proper trap. In the end they spend more
than 150% of what they should have!
I hope I have been helpful.
Lloyd
Lloyd Spear Owner, Ross Rounds, Inc.
Peter Borst
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Greetings
My copy of the ABC XYZ of Beekeeping, published in
1978, has complete plans for the OAC pollen trap. Their
original version is very simple and inexpensive to make.
Most of the modifications that have been added over the
years are unnecessary or ill advised. Drone escapes are
essential, screen on the bottom tray is not.
I had over 300 of these installed in the 1980s when I
sold bee pollen for human consumption. My wife and I
produced about 4000 lbs per year. Trapping pollen is
labor intensive but if you have a market for it, you can
make more money than just about any other form of
beekeeping. I will gladly answer specific questions about
trapping, storing and selling pollen.
I no longer own any bees and sell no products, being
solely involved with bee research at the University.
Peter Borst
Ithaca NY USA
OAC Pollen Trap
There are photos at:
www.fao.org/docrep/w0076e/w0076e10.htm (near the bottom
of the page).
and plans here...
http://www.xs4all.nl/~jtemp/ChiliPolVal.html or
http://www.xs4all.nl/~jtemp/Chili8.html
Musashi
email@omitted.anti.spam
I believe that OAC means "Ontario Agricultural
College" where the design for this particular pollen trap
was developed. I did a search today on the Web and
discovered some plans for the OAC Pollen Trap at the
following address:
http://www.ag.uiuc.edu/~vista/html_pubs/BEEKEEP/CHAPT2/2-20.gif
There is also text in Chapter 2 which explain the
construction and operation. This information is helpful,
as are the plans in Jan Tempelman's web site which he
referred to yesterday. Andy Nachbaur's web site has an
"online publication" called "Golden Harvest" that
explains all about how pollen traps can be constructed
and used, but has no plans per se. After having made my
own pollen trap based on my readings and on plans I found
in one of Eva Crane's books (the big one, I forget the
title), and used it for a year (and it worked O.K.), I
ordered a trap from Stauffer's Beehives and Pollen Traps
that was recommended to me as the best pollen trap
available on the market. Having received that trap and
examined it closely, I concur that it is probably the
best designed pollen trap I have ever seen and I look
forward to using it this coming season.
Layne Westover
College Station, Texas, U.S.A.
Keastman
email@omitted.anti.spam
The address in 1995 was:
Stauffer's Beehives
Superior Pollen Traps
RD 1 Box 489
Port Trevorton, PA 17864
I have one of the Stouffer's traps and it works well.
It is very similar to the "Sundance" pollen trap by Ross
Rounds. They both perform very much the same. I have one
of each and have had good success with both of them.
Ken Eastman
Lloyd Spear
email@omitted.anti.spam
Honeybees more or less collect pollen "as they need
it". This is different from nectar collection, where they
store enormous quantities for future use. In his great
book, The Wisdom of the Hive, Tom Seeley documents that
when bees have stored a certain quantity (at the moment,
I can't recall what that quantity is) of pollen they
"turn off" pollen collection (regardless of availability)
and change to nectar collection. Tom documents how this
has been measured and duplicated by scientists. They
store about a 2-week supply before they "turn off", or
decrease levels to what is necessary to replace daily
use. (ok, ok, they sometimes plug out with pollen, and
that is explainable, but lets not quibble.)
How the bees measure the supply of pollen in a hive is
fascinating, but I won't get into it right now.
Given that bees will not store a six-month supply of
pollen, as they will nectar, all beekeepers should
collect some pollen because:
- At times of the year, pollen dearth's can occur.
These will result in cessation or substantial reduction
of brood rearing, and may come when beekeepers are
trying to expand the brood nest. Feeding pollen patties
is a quick easy way to maintain brood rearing.
- All beekeepers should have at least one nuc on
standby in case something unexpected happens to their
hives. I have seen it recommended that beekeepers
maintain a minimum of one standby nuc, or one per five
hives, whichever is more. Many beekeepers fail when
establishing nucs, and I believe one of the primary
reasons is that they fail to feed the nuc enough
pollen. (While all the books say to give nucs at least
2 frames with honey and pollen (or one with honey and
one with pollen), when I have inspected hobbyist nucs I
almost always find that not enough pollen has been
supplied. Pollen cakes are the answer and should almost
always be fed to nucs until they start to draw and fill
foundation.
- Most of us do not have to feed honey/syrup to get
bees through the winter, as we can leave them with
enough stores. However, many hives do not carry enough
pollen through the winter, and a pollen feeding in very
early spring works wonders! In fact, Tom Seeley feels
that incoming pollen is what triggers brood expansion
in the spring, and several scientists have documented
the enormous beneficial effect of feeding spring
pollen, as a matter of course.
After some 35 years I continue to learn beekeeping,
and one of the most striking of my recent lessons has
been how many commercial beekeepers regularly feed pollen
or pollen+pollen supplements. (Allen Dick has some great
observations on this at his web site.) Many or most
commercial beekeepers would not think of getting through
a spring without feeding pollen cakes, yet the practice
has not been widely suggested to hobbyists and
sideliners. (To be fair, Nick Calderone did recently in a
Bee Culture article.)
I now always feed nucs pollen, and I produce over 100
a year. Last year I also fed to some 40 colonies that I
wanted to produce comb honey on, after taking splits, and
was very pleased with the results. They produced so much
brood that taking substantial splits did not seem to slow
them down for early comb honey.
So, IMHO all beekeepers should collect pollen for
feeding. Then there is the subject of eating and selling
pollen. Not selling pollen is leaving money in the
streets...but I am tired of typing and that will be for
later.
Lloyd
Barry Birkey
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Hi Llyod, thanks for the informative post. I still
have some questions to ask.
If I understand you correctly and take my own
experience into consideration, pollen collection and
storage in the hive is probably closely related to ones
seasonal climate and environment? My observation from my
own hives has never shown that the bees are not capable
of gathering and storing pollen in enough quantities for
their year round use. Last week it warmed up to 40F and I
decided to look into a couple of my hives. In both hives,
I found at least 4-5 frames that had copious amounts of
stored pollen and I could also hold sealed honey frames
up to the light and see cells that had pollen stored
under the honey.
This allows the bees to start raising brood in
February, months before any pollen will be available for
collection. Once early spring hits, the pollen starts
flowing into the hive again and tapers off once the honey
flow starts. Again in fall the pollen picks up and plenty
is stored away for winter. I have never been able to go
through one of my hives and not see pollen stored in
cells.
I know Allen has shared a lot on this list about his
practice of feeding pollen or pollen substitutes but I
interpreted that to mean his particular area does not
support an abundance of pollen at times when the bees
need it so supplemental feeding is done at certain times.
I assume Allen will shed more light on this. Is it true
that even commercial beekeepers from locations where
pollen is available most of the year still practice
pollen feeding?
I think we both agree on the vital importance pollen
plays in the health of the colony. My concern still is
whether or not it is routinely a good practice to collect
pollen from hives. Another concern with trapping is, if
we keep taking pollen from the bees as they are bringing
it in, could this not have a negative affect on the honey
crop? If the bees are trying to bring in pollen for their
use in brood rearing and it keeps getting taken away,
won't they spend more of their time searching for pollen
when they could be collecting nectar? It seems like it
can become a fairly elaborate management style to take
over controlling the pollen supply to the bees.
Just some more of my wild thoughts.
For another POV, I found the followning in the Volume
2, Number 8, August, 1984 edition of the Apis Newsletter
by M.T. Sanford.
Pollen Trapping
Some promoters have suggested pollen trapping to
be beneficial to a bee colony. This is debatable at best.
Dr. Dietz, at the University of Georgia in his studies of
honey bee-marsh interactions, believes that constant
trapping of pollen decreases population potential by as
much as one-third in some colonies. Steve Taber, retired
from the Tucson Bee Laboratory, in "Pollen and Pollen
Trapping," American Bee Journal, Vol. 124 (7), July 1984,
pp. 512-513, says:
"If you put on pollen traps, you should expect
certain hive problems that you don't have without them.
Don't hurt your bees. Don't force the bees into a pollen
deficient diet...My suggestion is that after trapping
pollen for two weeks, you should remove the traps for a
week." Finally, there is the question of the efficiency
of trapping pollen from bees. This varies considerably. A
study by Canadians A. Tellier and U. Soehngen, reported
in the Cook-Dupage Beekeepers' Association Newsletter,
Vol. 39 (5), June 1984, evaluates several traps.
According to the authors:
"The Efficiency of pollen traps varies from
approximately 10 Efficiency is influenced by the
uniformity of the openings in the trap, differences in
body sizes of the foragers (which may be considerable
both between and within colonies), and by the sizes of
the pollen loads. In addition, the number of openings in
a trap influences the degree of crowding within the trap,
and consequently, it efficiency in collecting pollen. It
is apparent, therefore, that each colony-trap combination
is unieque and that an accurate determination of the
efficiency of trap design, derived from observations made
on one colony-trap combination is impossible." Their
preliminary results (research is continuing) suggest the
bottom mounted Barrhead Pollen Trap (manufactured in
Canada) to be superior in most trials, providing the
greatest quantity of clean pollen. The OAC (Ontario
Agricultural College) trap was rated poorest in pollen
cleanliness. The front mounted USDA Pollen Trap was
second best in terms of pollen production. In general,
cleanliness of resulting pollen is not as good in bottom
mounted traps, which tend to collect all hive debris, but
this is offset by other advantages such as rear drawer
removal, protection of collected pollen from the weather
and provision for escape of drones and queens.
Lloyd Spear
email@omitted.anti.spam
I will address just two of Barry's questions and hope
others will address the remainder.
1. According to Seeley, the trigger for substantial
brood rearing comes from incoming, not stored, pollen.
One commercial producer I know feeds pollen to his bees
beginning in November to get them ready for the almond
pollination, in late January. While they may have enough
stores to support "substantial" brood rearing, they will
not use them until pollen is being collected. The
speculation is that bees will not begin "substantial"
brood rearing based solely on stored pollen because they
know that could be quickly exhausted and then the entire
hive might die!
2. Again, according to Seeley, it does not appear (he
admits that more work needs to be done) that continued
pollen collection detracts from nectar collection. He
suspects that may be because idle workers are utilized
when pollen needs are critical. (He documents that at any
one time approximately 20% of the workers in a hive are
"idle"; that is, not nurses, undertakers, collectors,
guards, etc.) While I know of several collectors of
substantial amounts of pollen who leave their traps on
all summer and claim no reduction in nectar collections,
I do not follow that practice. I only collect for 3 weeks
in the spring, and again for 3 weeks in the fall. In this
location that provides me with about 25 pounds of pollen
a trap, and that is plenty.
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