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Old 22-03-2010, 08:23 PM posted to uk.rec.gardening
David in Normandy[_8_] David in Normandy[_8_] is offline
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Default What causes black bits inside potatoes?

On 22/03/2010 20:19, Mike Lyle wrote:
someone wrote:
"David in wrote in message
. fr...
Any ideas what cause this? I'm just curious. It doesn't seem to be
directly related to slug damage as the black / grey mass can
sometimes be quite deep inside otherwise apparently pest free
potatoes.


Could it be internal rust spot?

http://www.potato.org.uk/department/...f.html?item=42

If not that, then maybe blight or gangrene.

It doesn't look like those when I see it. My money's still probably on
bruising: see at
http://www.potato.org.uk/department/knowledge_transfer/pests_and_diseases/ref.html?item=33


That looks like it! Bruising. Hmmm. Looks like someone hasn't been very
careful harvesting the potatoes. I've only seen this on shop bought
potatoes, never on my own.

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David in Normandy.
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