Potato Problem

Could someone please tell me what potato problem I have here?! The leaves are curling up and the plants look as if they are dying off. It's not affecting all the plants but I'm wondering if it will spread if I don't take the diseased ones out.
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frostynick


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frostynick said:

Yes, pull the affected plants as soon as possible.
(Has it been warmer and damper than usual?)
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'Pat Kiewicz[_2_ Wrote: > ;986811']frostynick said:-

> It's

> (http://tinyurl.com/qfgbn3z )

Many thanks for your reply and the RHS link - I will destroy the affected plants and hope for the best with the others!
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You may want to poke some hole in the ground around the potatoes, and pour in some sulfur dust, in order to drop the pH.
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On Wednesday, July 3, 2013 3:13:05 AM UTC-4, frostynick wrote:

Probably bacterial but check the pH of your soil. We had a similar problem several years ago that we solved by correcting the soil pH. I googled "pH f or growing potatoes" and found this:
"Potatoes grow best in an acidic soil with a pH level between 5.2 and 6.0. It is possible for them to grow in a higher pH, but the risk of developing a disease called ?scab? is more likely."
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