Orange marks on Blueberry leaves

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JohnB47

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  • Location: East Devon
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Orange marks on Blueberry leaves
« on: July 04, 2010, 14:17 »
Has anyone any idea what caused this? I'm sure these marks weren't there yesterday. I do have to water (using rainwater only) from above now that I've put a net cage around them to keep the blackbirds off - could it be scorch marks? I may have watered during a sunny spell.

As you can see, I've taken the marked leaves off, just in case. Anything to worry about? The bushes are healthy looking in all other respects.

Thanks.
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Trillium

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Re: Orange marks on Blueberry leaves
« Reply #1 on: July 04, 2010, 16:26 »
I'd put them down to sunscorch. If you look at where the marks sit, they seem to be in little depressions on the leaves where some water got caught and then burned off. Water can act like magnifying lenses if left to sit. Despite the inconvenience of lifting your netting, it would be far better to water the fruit bushes from below where you know they'd get 100% of the water more evenly spread.

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JohnB47

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  • Location: East Devon
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Re: Orange marks on Blueberry leaves
« Reply #2 on: July 04, 2010, 17:09 »
Thanks. Yes, I think you're right.

Hmmm. Must devise an easy way to water them - or only water late at night?

Cheers.



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