peach tree disease (forum)

Belinda starts with ...
I have a big, old peach tree that in the 2 seasons i have lived here has produced masses of blossom and fruit that look very healthy but never fully develop. Then they get sap oozing from them and drop off the tree unripe. Some stay on the tree and mummify - i've knocked all these off though.
In the photo of the main trunk you can see the bark is quite cracked but the rest of the branches look quite healthy. There is no sap/gum on the bark and never any damage on the leaves.
Unfortunately (being winter) i don't have any photos of the new fruit just an old mummified one that was still on the tree today. I haven't seen any fruit ever ripen on the tree. What could this be caused by and what can i do to prevent it?
Pictures - Click to enlarge

Picture: 1
Picture: 2
Picture: 3

Time: 5th July 2008 6:16pm

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About the Author Belinda3
Wesburn, Victoria
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Dekka says...
It might be caused by an introduced beetle called Carpophillus. It spreads spores of the Brown Rot fungus. If the sap is oozing mainly from the stem-end of the fruit then it's likely to be the beetle attacking the fruit. You have to clean up and get rid of everything that falls from the tree as well as the mummies that persist and any unhealthy looking twigs. Pruning your tree to a more sparse habit may also help to compensate for unusually humid conditions that promote fungus.

Time: 5th July 2008 8:30pm

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About the Author Dekka
Newcastle
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Faramir says...
I agree with Dekka, what she has suggested would help your tree a bit.

Time: 3rd November 2009 3:42pm

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About the Author Faramir
Nsw
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Dekka says...
She???!!! Dekka is a 6' 2", 115kg hairy aussie BLOKE!!!...at least I was the last time I checked!!!

Time: 3rd November 2009 7:56pm

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About the Author Dekka
Newcastle
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Damo says...
Mmm, just the kind of girl to take home to mother.

Time: 3rd November 2009 10:08pm

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Jason says...
Most of the time, But when Dekka's wife is away, Dekka likes to sort through her wardrobe.

Time: 3rd November 2009 10:09pm

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About the Author Jason1
Perth
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Jimmy says...
As Homer said to Marge, it's just a comfort thing, nothing wrong with that...

Time: 4th November 2009 1:31pm

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About the Author Jimmy
Perth
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Dekka says...
Hey guys, you leave my wife TREVOR out of it!!!

Time: 4th November 2009 7:39pm

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About the Author Dekka
Newcastle
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Jason says...
Dekka, have you and your lovely wife every been spotted in the same place at same time?

Ala Superman and Clark Kent

Time: 4th November 2009 10:06pm

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About the Author Jason1
Perth
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