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Old 05-09-2007, 06:30 AM posted to rec.gardens
sherwindu sherwindu is offline
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First recorded activity by GardenBanter: Jul 2006
Posts: 349
Default Prunes tree disease



Sheldon wrote:

On Sep 4, 12:11?pm, "Don Staples" wrote:
"Sheldon" wrote in message

ups.com...





On Sep 3, 1:55?pm, Fish wrote:
I planted a very small prunes few month back, it grew 2 feet strongly
and suddenly it started to developed some type of disease in southern
calif.


the leaves have small holes in it, they are droppy, many become
yellow. Most have holes except
the young one.


I use Ortho Garden Disease Control, no good. Use different product to
keep insect away, no good.


Go to nursery, they point me to different directions depending on whom
I ask, they are few time more expensive than the tree itself.


the branches become darken as if they have fungus infection, but buds
grow on them.


see some flies who use the leaf as bathroom or nursery for the young.


Out of wit, anyone who has idea what happened to the tree and how to
cure it?


Obvious to me that you bought infected nursery stock. Since you
haven't any time invested in that tree I would dig it up immediately
before it infects your other plants and bring it back where you bought
it and see if they'll return your money... if not just leave it there
(not worth arguing over a plum tree), you don't want that plant on
your property. In any case never buy anything there again... you
definitely do not want a replacement tree from them. Then heavily
drench the spot where you planted that tree with a general
insecticide, Sevin is good....


If it is indeed fire blight, insecticide will do no good what so ever. Get
it diagnosed by a a reputable source.


The symptoms described by the OP (small leaf holes) are nothing like
fire blight... and in fact small leaf holes are very indicative of
insects. Don't really need to treat for insects unless there is
indication of the same symptoms spreading to other plants but it's a
good insurance and can't hurt.

http://www.britannica.com/eb/article...26/fire-blight


The holes in the leaves may or may not be part of this problem.
More serious is the blackening of the branches. I think if you look
at fireblight more carefully, you will find that is one of it's indicators.

The best thing may be to bring the trees back to the original seller, but
fireblight can be controlled in some cases. It may not be worthwhile to
do, so in this case/

Sherwin D.



Regardless, I'd get rid of that tree rather than bother to treat it
(best to cut losses early), and replace it with one from responsible
nursery. And since it was only just planted it will have developed no
new roots, just gently pull it out with it's original root ball and
return it tree, roots, and soil.