Our peach tree, suited for our area, has not produced healthy fruit in
three years. This year I gave it one more chance. I thinned the
fruits early, pruned properly, cleaned up the area beneath the tree,
fertilized it at the proper time and the fruit has the clear gunk on
them, as well as it oozing out of the tree limbs. The fruit is not
getting larger and is mishapen. At what point would you cut the tree
down and plant another on the other side of the property?
On Sat, 21 Jun 2008 13:39:01 -0700 (PDT), beecrofter
The gum exudate is not amber colored, but clear and I can't find any
obvious cankers. I also have or had the last two years a problem with
brown rot. Most peaches had worms near the stone (these are free
stone 'Dixieland' variety).
I have another spot where I can plant another tree so I'll do that
this coming February. Too much problems with this and I have no
intention on treating it if it requires fungicides. It may even be
better to plant one out back where the animals in the yard live so
they will stay back there and eat the fruit which falls, instead of
coming onto the pool deck to eat the falling fruit. I hate to pick up
the falling fruit because the butterflies get drunk on those rotten
peaches! Particlarly the Red Admirals.
Improper pruning starts many life threatening situations for the symplast of
peaches. Improper mulching sets the stage for other issues that result in
the effects you have acquired. All of the pesticides in the world will not
fix problems associated with improper planting, fertilizing and pruning for
You also probably suffer from troubles in the rhizosphere.
1. What elements have you added to the tree?
2. Can you provide some pictures of the pruning cuts on the trees?
3. Did you prune the woody roots on the trees before planting?
4. Did you plant the tree at the depth the woody roots are coming off the
5. Was there wounds on the trunk when you bought the tree?
Many tree problems are associated with the following: They are Case
Unhealthy Trees from the Nursery / Improper Planting
Improper Mulching -
Improper Fertilization (See A Touch of Chemistry)
Tree Farming and Related Problems
Troubles in the Rhizosphere
John A. Keslick, Jr.
Consulting Tree Biologist
Beware of so-called tree experts who do not understand tree biology.
Storms, fires, floods, earthquakes, and volcanic eruptions keep reminding us
that we are not the boss.
Some people will buy products they do not understand and not buy books that
will give them understanding.
My Redhaven is 17 years old. It has given off amber exudate for several
years now. However, it continues to thrive and produce lots of peaches.
I don't think gummosis is the cause of his lack of fruit.
No, not a dwarf. The variety is a very low chill hourselection
because we have such mild winters. I believe it is a 400 chill hour
selection. We planted it (I think) five years ago. The trunk is
about 10" in diameter and abot 12 feet tall, pruned in an upside down
umbrella form. The first year it developed one peach, the second year
we harvested 15 bushels of beautiful fruit. It hasn't produced
healthy peaches since...for the last 2 or 3 years.
Here in NH (no lack of chill hours here!) when I hear of gung weeping
from peach trunks and branches I think of peach tree borer and lesser
peach tree borer.
See what our state entomolygist, and all around great guy, says
http://extension.unh.edu/Agric/Docs/June19_08.pdf He has chemical and
Almost any insect infestation will produce weeping from the fruit. You
can wade through Alan's newsletters
http://extension.unh.edu/Agric/AGPMP/IPMNews.htm for lots of useful
Thank you, John. I will take a gander and when the foliage falls in
the fall I will be able to better inspect the limbs for any possible
problems with borers. Such a shame. This tree produced the most
lucious, sweet, dripping juicy fruits that anyone on my block has ever
eaten. Me included. I do think it's beyond treatment at this point.
It is such a mess. I can't find any cankers, and in the fruits I do
see holes and mishapen areas. Drat.
My first thought that you had an old peach dwarf that has just reached
the end of it's productive years. Not your case. My Redhaven peach
is about 19 years old, and has ozzed sap for most of that time. It still
produces abundant heathy peaches every season. Brown rot can be
controlled mostly by good sanitation and removal of affected material.
There are also sprays for that. Did you remove another peach tree in
this troubled period? Although peaches are generally self-fruitful, they
do better with another peach tree in the vicinity to help with pollination.
By the way, which cultivar of peach do you have? Sounds like you are
getting enough fruit though, but it is spoiling on the tree. The worms in
the fruit could be codling moth or something similar. If so, you need to
go on a spray schedule of insecticide, starting shortly after pedal fall,
continuing every few weeks until harvest. Codling moth is a difficult one
to control, so pick a strong spray, like Imidan to do the job. Just be
to take the necessary precautions when using strong sprays, like
clothing and breathing mask.
Hope this helps,
PEACH trees are a C tree with respect to improper pruning and death of
branches. If you do not understand that maybe you need to read MODERN
ARBORICULTURE: http://www.shigoandtrees.com/Default.aspx People who speak
about such trees should be required to dissect them.
The tree walls itself to death with the help of improper pruning, improper
planting and improper fertilization.
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