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Pollinating Hybrid Canola Pollinating Hybrid Canola
Pollinating... |
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Pollinating Hybrid
Canola
in Southern Alberta, Canada
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June 1998: Moving out at 5 AM.
These hives were loaded by different crews after dusk the previous night,
and parked until daybreak when the new shift came in to drive them to the
pollination yards. Hive pickup takes place over a 60 mile radius
from our honey house. The delivery to pollination is about 150
miles and takes about eight hours to complete -- if all goes well.
At night and in early morning most bees
stay nicely in the hives. The hives must, however, be delivered to
their new sites by about 8:30 AM. After about 8:30 it becomes
impossible to keep the bees on the truck without nets; they want to fly
out and will become lost along the way. We sometimes use nets, but
they are difficult to apply and the bees do come out and cluster on the
net if the weather is warm and sunny. Moving in hot summer daytime
with nets is not a good way to do things, if night or rainy weather
moving is possible.
Each truck and trailer carries 80 hives in
four standard boxes. This spring we had an early flow and the hives were
heavy, limiting the size of our loads. |
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This is the first group of forty hives
unloaded at one site. When these were delivered, the thirds were light
and the frames rattled around a bit. By the end of the week all our
hives were delivered in four standards. And they were heavy. We
moved off a good fast flow in our home area.
Not all pollinators provided such strong
hives. I am told that some delivered their bees in two boxes
and only added a third during the month or so of pollination. They
also did not need to remove any honey during that time, although, of
necessity, we supered up to 5 or 7 boxes high at one point and had to
remove honey to get them back down to a size we could move.
The canola produces a nice white honey in
reasonable quantities. However, because of the number of bees on
each acre -- honey bees and also leafcutters -- honey crops are not a
large as in normal beekeeping practice. We are uncertain how much
honey was produced on the canola pollination, since we toted a fair
amount down with us when we brought the bees, however we found that when
we had pulled honey at the end of July and were ready to return home we
had removed an average of 40 pounds net per hive. |
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Hybrid canola is grown in rows (bays) with
the 'females' in one row, and the 'males' in adjacent rows. No
hybrid canola would be produced without bees. After
pollination is complete, the 'male' rows are mowed out, since they do not
produce the desired type of seed.
The orange tents are shelters for alfalfa
leaf cutter bees which share the task of pollinating this particular
field. Another group of our honeybee hives is visible across the
field. Fields are stocked with anywhere from 1-1/2 to 3 hives per
acre of crop, depending on factors such as whether the leafcutters are
used too.
Leafcutters here were applied at a rate of
about 2 gallons per acre, I was told, and the recovery for the leafcutter
beekeeper was only about 30%. The leafcutter bees tend to pollinate
very close to their tents and apparently also do not work well if the
weather is at all cool.
The canola at all our locations was
sprayed with DecisŪ at the end of bloom due to lygus bug. The
aerial applicators were very careful to avoid the beehives - leaving a
200m distance from the hives - in most locations and were also careful to
spray just before dark. We noticed very little loss, except where
the hives were right in the crop, and even there it was very light.
I am told that Decis is a low residue product and loses its hazard to
bees overnight. |
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Breakdowns were a common occurrence due to
the amount of work and night-time operation. here Steve and James change
a flat for the second -- or is it the third time? -- on a forklift.
In the daytime!
Mechanical failures ranged from bent
bumpers, damaged while being towed out of irrigation mud holes, to broken
U-joints. We had several flats and also had one truck engine
require a re-build due to hard service and stressful night-time working
conditions.
Having said that, it was beautiful out
there in the chest high crops at 2 AM when the moon was full. We
all had a pride in doing an important job well. The farmers were
most appreciative and co-operative. They never whimpered when
phoned at 3 or 4 in the morning to pull us out of a hole, and showed up
promptly with a tractor when needed.
The folks at AgrEvo were always pleasant
and positive, and willing to meet us anywhere, anytime if we needed them.
A particular thank-you to Rob Wauters who was our 'angel'. He
planned the locations for us, guided our trucks into the sites, and made
sure everything was AOK at all times.
Although pollination was a tough job --
probably the toughest job I've done -- we got through it and getting
ready for another year with some eagerness. We've added another
forklift and lots more trucks, and made some changes in our management to
ensure that things go even better next time.
Contact allen dick |
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