Even with confirmed alternate bearing Apples
there will be a heavy production year followed
by a lean production year. We still get some
Apples in the lean production year but not as
many as the previous year. I have no answers
for why the tree went from many Apples to
none as I do not know any of the cultural
practices and the effects of weather upon
the tree that might in part explain why there
were not any Apples this year. I cannot reason
that this condition was due solely to the heavy
crop last year.
There is more to the story for this tree to have
no Apples at all this year such as: rainfall when
the tree was in bloom to prevent bee pollination,
no pollinizer Apple tree nearby to aid in the
pollinzing, a severe pruning to force out too
much new growth, for spur type Apples the
cutting off of the spurs, too much Nitrogen
which can cause too much vegetative growth
at the expense of flower production, a growth
regulator applied when the trees were in bloom,
same as a herbicide applied to the ground when
the tree was about to bloom which can make the
flowers fall off the tree. We need to know more
of what happened before the tree was to flower
and what was going on as the tree was in bloom
and what happened to the flowers afterwards.
Then the question, were there any flowers at all
which would explain why there were not any
Apples. We need a walk through as to what went
on with this tree in order to give an analysis of
what went wrong any credence.
Below is an article using growth regulators as a
tool for alternate bearing trees.
Overcome alternate-bearing apple trees with strong cultural base, timely PGRs
Obviously there is a problem with the Elstar producing
many Apples that may have to be chemically thinned
in order to generate size to the Apples and to better
ensure a next years crop in the process.
THINNING OF 'JONAGOLD' AND 'ELSTAR' APPLES WITH THE COMBINATION OF ETHEPHON AND CPPU
An excellent tree growing overview with the use of growth regulators.
OTHER GROWTH REGULATOR PROGRAMS:APPLES AND PEARS
This link serves to be one of the better general links
I've seen for this Apple. The photo is excellent and
is probably the best quality photo you will find online
of the Apple. I have not seen much information on
this Apple from Canadian sources online so the basis
for this topic for the day in my view becomes even
more timely and pertinent.
Botany Photo of the Day: Malus 'Elstar'