Zootal wrote:
I have two apricot trees that I planted two years ago. They grew fine the
first two years. This year, they budded out and started to grow and were
doing fine until a few weeks or so ago. Now one appears to be almost
dead, and the second is starting to show symptoms.
Last year I noticed the bark peeling on one of the trees. This year the
bark peeling is worse, and may or may not be related. The bark peeling is
on all sides of tree and at various elevations. It most definitaly is not
mechanical damage, and the location of it makes me think it's not caused
by sun exposure. Besides, this is Oregon, the sun doesn't shine much here
.
In the course of about 10 days, the foliage has started to die to the
point where 90% of the leaves are dead. The other tree shows bark peeling
in one small spot only, and the foliage is starting to wilt and show
signs of stress. I've googled around, but didn't see anything that looks
like this. Does this look/sound familiar to anyone?
Here are a few pics:
Good pic of the second tree, shows drooping foliage.
http://zootal.no-ip.info/stuff/2008/2008MayDiseasedApricotTrees/images/DSCF2717.JPG
Bark damage on second tree, note drooping foliage:
http://zootal.no-ip.info/stuff/2008/2008MayDiseasedApricotTrees/images/DSCF2716.JPG
Bark damage on first tree. Note how it looks like there are two branches
growing side by side under the bark. This pattern is seen in several
places:
http://zootal.no-ip.info/stuff/2008/2008MayDiseasedApricotTrees/images/DSCF2719.JPG
http://zootal.no-ip.info/stuff/2008/2008MayDiseasedApricotTrees/images/DSCF2721.JPG
http://zootal.no-ip.info/stuff/2008/2008MayDiseasedApricotTrees/images/DSCF2711.JPG
http://zootal.no-ip.info/stuff/2008/2008MayDiseasedApricotTrees/images/DSCF2720.JPG
And dying leaves:
http://zootal.no-ip.info/stuff/2008/2008MayDiseasedApricotTrees/images/DSCF2714.JPG
I've looked at your pictures and I have some comments.
First, the peeling bark does not look like a problem. I believe it is just
your tree making the change from the young smooth bark to the more mature
bark.
The picture where you say it looks like 2 branches growing side by side...
That's just you tree healing over a damaged or dead spot. The dead area my
have been hidden under the bark but as the tree grows and tries to heal
over the damage, that's what it would look like.
The wilting and then dying leaves is not good news. Two ideas come to
mind.
1. It could be that your trees are not cold hardy enough for your area and
you are having winter damage to the trunk or limbs. I have seen this in my
yard with apple trees that turned out to not be hardy enough. They would
leaf out normally in the spring and grow several inches of new growth then
suddenly wilt and die because part of the trunk had died. Winter damage
could maybe explain the areas in you picture where the tree is healing
over dead areas.
2. It could be that your soil is wetter than those particular trees can
tolerate. The trees might grow well when young but when the trees get
bigger and need a bigger root system to support the top, they can't do it.
Steve
