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Blueberry leaves are dropping affected by disease

    16 responses

Yuliya starts with ...
Hi guys,
Misty and Biloxi dropping leaves affected by this yellow-orange spotted fungus (?). Soil is acidic and up until 1 month ago they were flowering like crazy and were very happy. The other varieties don't seem to be affected, despite the fact that they all are in a containers very close to each other.

I've removed the affected leaves, but I'm sure there is still plenty of that substance around, so it's probably going to come back...

Thanks everyone!
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Picture: 1

Picture: 2
 
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Yuliya
Brisbane
26th June 2012 1:28pm
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Db says...
I was about to post exact same post for same issue. I'm growing sharpblue, gulfcoast, misty in a pot and they all seems to be affected (more or less). I hope someone will be able to help us here.
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Db
Brisbane
26th June 2012 2:55pm
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Original Post was last edited: 26th June 2012 2:56pm
Yuliya says...
Once the rain stops I'm going to try diluted peroxide spray. Google search says it's a good natural fungal remedy, did you try anything yet Db? How are your blueberries doing?
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Yuliya
Brisbane
27th June 2012 10:45am
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Db says...
Yuliya, I have not tried anything yet, I only removed affected leaves like you.. My plants are not doing good, there is no new growth at all since I planted them 3-4 months back... Recently they flowered a lot like yours and some fruits are formed now but most of remaining flowers are now dried and getting dropped due to this yellow fungus disease or whatever it is.. I was anyway going to remove flowers to promote green growth...
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Db
Brisbane
28th June 2012 9:23am
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Original Post was last edited: 28th June 2012 9:23am
Jantina says...
Down here the blueberries always lose their leaves in winter (deciduous)after the leaves go orange and yellow. Maybe check with where you got them to see if they lose their leaves up there too.
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Jantina
Mt Gambier
28th June 2012 6:03pm
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Db says...
Jantila, I'm worried about the yellow substance at the back of the leaves, is it a some disease? See 2nd photo above by Yuliya, all of my blueberry plants have this yellow substance on the back of the leaves and so worried.
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Db
Brisbane
29th June 2012 7:52am
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Paula-f says...
Db, it looks like some kind of rust.....the same as my frangipani gets on the back of the leaves at the end of summer. Just had a look at my blueberries, and some of the leaves are falling off, but none have that growth on them. Hopefully a spray of lime sulphur will get rid of it.
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paulaf1
SEQ
29th June 2012 8:23am
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Db says...
Thanks Paula-f, I'll try lime sulphur spray.. I hope it's available in Bunnings..
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Db
Brisbane
29th June 2012 8:30am
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Db says...
I was reading about lime sulfur spray and everywhere it says 'Don't use lime sulfur spray on evergreens, as it might burn the fruits and leaves'.

So I'm not sure I should really use this on my tree at this stage, any suggestion?
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Db
Brisbane
29th June 2012 8:53am
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amanda says...
BJ (Brisbane) - what did u use for the myrtle rust on your plant recently..?

Looks like rust in the 2nd pic to me too :-(
You can use Kocide on evergreens (a copper spray) There is also Anti-Rot which is not a 'nasty' spray..
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amanda19
Geraldton. 400km north of Perth.
29th June 2012 9:54am
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BJ says...
Looks like blueberry rust. do a google on it. Should be able to treat it with mancozeb, lime sulphur and a few other products about.
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Theposterformerlyknownas
Brisbane
29th June 2012 3:51pm
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Db says...
Thanks BJ, I'll spray that...
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Db
Brisbane
29th June 2012 6:14pm
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&lt;a href=&quot;http://wherewhywhen.com/are-blueberries-good-for-you/&quot;&gt; justmebanel &lt;/a&gt; says...
Helpful guide answering the question 'are blueberries good for you', including helpful advise with how they prevent against certain diseases, and how to incorporate them into a daily diet.
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a hrefhttpwherewhywhencomareblueberriesgoodforyou justmebanel a1
romania
28th July 2012 2:41am
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Original Post was last edited: 28th July 2012 2:43am
Yuliya says...
Hi Db, how are your blueberries? Mine a flowering again (no leaves, poor thing dropped them all). Sprayed white oil on them just as I was spraying another plant. Funny out of all varieties only the same 2 have the rust, weird...
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Yuliya
 
1st August 2012 7:35pm
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Db says...
Hi Yuliya, I applied lime sulfur spray as per above suggestion, It has surely helped to reduce the rust but its still there.. Most affected variety is now leaf-less but it has flowers.. Other 2 varieties are less affected and has few leaves remaining and some of them still have rust.. May be I need to spray it again... All three are flowering again but looks like most are getting dropped as I can see only few fruits forming.. I don't expect berries so soon anyway as all three are very young at this stage.. Not sure how I can encourage them to put on green growth instead of flowering.. I regularly gave them seasol and powerfeed as well but no new growth yet..
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Db
Brisbane
2nd August 2012 8:53am
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Ricky Bobby says...
This is a brigitta I have never grown blueberrys before it has been cold at night is this are they supposed to look like this at time of year?
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Ricky Bobby
Tom Price
3rd August 2012 10:59am
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Yuliya says...
Ricky Bobby, looks like mine when dormant.
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Yuliya
 
9th August 2012 1:49pm
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