Bacterial disease on stone fruit (forum)

Anon starts with ...
Hi
Just wondering if anyone has had success and can give some advice re treating bacterial canker on young peaches/nectarines. Haven't got the cankers yet as such but have all the other symptoms. I'm going to clear mulch, cut back effected tips and spray with copper oxy and bourdeaux. My book says young trees will never recover fully and that they should just be ripped out. I am reluctant to though and would like to try till next spring perhaps. Any advice appreciated.
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Picture: 1
Picture: 2

Time: 13th March 2011 10:34am

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amanda says...
They don't look good Anon.. :( The treatments u are looking at are for fungi - not bacteria.
My advice would be to bin them and start again. Are they getting watered by sprinklers via the lawn? If so - no good.
It's worth a shot with the copper sprays though....I would try the same myself... ;) Sometimes it's hard to tell what is going on (IMHO)!

The only other option I can think of - is to transplant them out of the lawn and see what happens...but do it soon. You can waste heaps of time nursing sickly plants for nothing. Sometimes u just have to be ruthless :(

PS - what's that little round leaf thing growing in the lawn in pic 2?

Also - u are spraying weed killer around the trees?

Time: 14th March 2011 3:18am

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Original Post was last edited: 14th March 2011 3:29am

About the Author amanda19
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amanda says...
If I get a case of bacterial canker - I am going to have a bash with hydrogen peroxide in truth! Most B.Cankers are from Psuedomonas which is a Gram Positive bacteria and reacts quite violently to H.peroxide. (one for u here kert - it's called "catalase positive")

Nothing to lose I reckon - and cheap from the supermarket!? :)


Time: 14th March 2011 3:37am

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Brendan says...
Hi anon,
Try mixing copper oxychloride with mancozeb plus, 30g of each in 4

Time: 14th March 2011 8:00am

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Anon says...
Thanks guys for your response. I've since cut them back to what appeared to be clean wood (and amazingly have not had any rain since I did this!) A quick inspection this morning showed however, that the oozing gel has now moved down the plant out of and below these points! So I'm afraid they're not long for this world.
Will give the spraying a go though. Can't hurt. . . I guess.

Amanda, the kidney shaped leaf is native violet - and a little bit rampant, it's been given a bit of a leg up with recent army worm attacks on my lawn.

Thanks again for the advice.

Time: 15th March 2011 4:56pm

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T J says...
Hydrogen peroxide - more details please Amanada - do you use it straight dillute it with something else etc?
Thanks


Time: 21st July 2013 12:10pm

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