[NAFEX] Sudden Apricot Death Syndrome?

Lori Rizzo larizzo at charter.net
Wed Sep 2 19:29:52 EDT 2009

That happened to me with my apricot-peach hybrids - both died suddenly.  The
culprit was peach borer.  There was a gelatinous muck around the base of the
trees.  When I finally did some digging, I found some maggots.




Lori Rizzo, RN BSN MBA

Health Care Quality Improvement

Pet Training & Behavior Improvement!

Maryville, TN

larizzo at charter.net



From: nafex-bounces at lists.ibiblio.org
[mailto:nafex-bounces at lists.ibiblio.org] On Behalf Of Lon J. Rombough
Sent: Wednesday, September 02, 2009 12:36 AM
To: North American Fruit Explorers
Subject: Re: [NAFEX] Sudden Apricot Death Syndrome?


If you peeled the bark off near that gummy spot, you'd likely find the
cambium dead all the way around the trunk. That kind of gummosis is common
in the NW. It grows during the cool, wet weather of spring, then dries up in
the summer. If can girdle limbs and trunks 3 inches or so in diameter or
less, and makes oozing cankers on larger diameter wood of susceptible trees.
The old treatment was to cut out the canker and paint the wound. 
The disease is most common on apricots, peaches, European plums, and some
American and hybrids. Also on Prunus tomentosa (bush cherry) and P. besseyi,
the Sand Cherry of the plains.
You can replant in the same hole. The disease is spread through the air.
Serious spraying and resistant varieties are your best bets.
-Lon Rombough
NEW grape pruning video: http://www.bunchgrapes.com/dvd.html View a short,
low resolution clip here: http://www.youtube.com/watch?v=8Q58zFY0B1M
Grapes, writing, consulting, my book, The Grape Grower, at
http://www.bunchgrapes.com Winner of the Garden Writers Association "Best
Talent in Writing" award for 2003. 
A video about The Grape Grower :
On Sep 1, 2009, at 9:21 PM, Ginda Fisher wrote:

I planted an apricot tree a few years ago. It's looked healthy until 
a couple of weeks ago, when quite suddenly the leaves all wilted and 
turned brown. It is now covered with dead leaves. (Not dropping 
yellow leaves, as the healthy tree did in the fall.) Any ideas what 
happened to it?

I saw a little bit of gum on the bark, but nothing that looked 
terrible. I did not see any other damage. We had a very cool wet 
summer until shortly before it died, when suddenly the weather turned 
hot and dry. But the apricot started to look dead before the 
raspberries looked even a little wilted. (They are within a few feet 
of each other, on similar soil.) It had a decent crop this year, but 
I thinned it pretty heavily, and I don't think the crop should have 
stressed the tree.

I suppose I'll leave it in the ground until next spring - weirder 
miracles have happened than it coming back into leaf. But it 
certainly looks dead. I'm debating buying another and replanting in 
the same spot. Any reason not to?

eastern MA, zone 6
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