Blueberry Burst - disease? (forum)

Susan16 starts with ...
I've had the Blueberry Burst about a year in a 1/2 wine barrel pot in our front south facing courtyard which gets a fair amount of light.
In the last week we've noticed it changing colour & now appears to be dying alarmingly quick - the difference from yesterday morning to these photos in the afternoon is very worrying.
Looking at the plant it appears the worst of the dying leaves relate to one main branch off the trunk near the base which makes me think some sort of disease. Other leaves are starting to change some I'm wondering if the 'disease' is spreading.
Any ideas what it is? And what to do to arrest the dying?
Thanking you in advance.
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Time: 17th May 2017 7:32am

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About the Author Susan16
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Markmelb says...
Leaves will go a little red if nights are cool down here in Melb - looks to me some sort of damage to that one branch low down - have you checked that? is like as if it is cambium damage or was bent? I and many others are quite disappointed with the Burst Marketing HYPE - Not a super cv - there are others far superior - I was still picking a couple now and then off the Nellie Kelly one which I think is Misty Blue. a good producer IMO

Time: 17th May 2017 5:53pm

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Original Post was last edited: 17th May 2017 5:53pm

About the Author Markmelb
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Missy says...
Have blueberry tree in a pot. At end of last season the leaves developed light grees patches and red spots. This year when the leaves grew back just a few weeks ago the same symtoms are starting to show. See pictures. The leaves start out fine then start to get the symptoms then leaf edges die. These plants have been in a large pots for about 2 years. When i first planted them i used a potting mix with acidity around 3. Couild this be deficiency or disease
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Time: 21st October 2017 11:41am

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About the Author Missy
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David says...
Hi Missy,
PH=3 is too low, as for Blueberry PH =4.5 to 5.5. Incorrect PH the root will grow abnormal hence cannot carry enough nutrients to the plant that may cause brown spots and other diseases. Correct PH to see the problem solved.

Time: 24th October 2017 12:04am

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Original Post was last edited: 24th October 2017 9:27pm

About the Author David01
Melbourne
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Missy says...
Thanks David. Would the best way be to upgrade the pot size and use new potting mix or is there anything i can add to the existing pot That would correct the ph. Thanks again

Time: 25th October 2017 6:39pm

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David says...
Hi Missy,

I would go to approx. 50 l pot size, 1 part azalea potting mix + 1 part pine bark plus 5-10 kg of washed sand. Cheers.

Time: 26th October 2017 11:27am

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About the Author David01
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Missy says...
Thanks so much for you help 😊

Time: 27th October 2017 11:26am

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