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The Last Spuds.


 
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ian
Rank attained: Ash Tree
Rank attained: Ash Tree


Joined: 22 Jun 2007
Posts: 234
Location: Tallaght

PostPosted: Tue Oct 04, 2011 4:34 pm    Post subject: The Last Spuds. Reply with quote

Hi All,
I dug up the last of my main potatoes yesterday , Maris Piper, they had died back the last week of August and have been left in the ground since. I dug up about 6 stone of fair to good size spuds. To my dismay i found tht a third of them had a dry sponge like cavity inside a honycomb of dryness with the outside looking perfectly innocent. Sorry I have no photos. There was no evidence of slug or worm, i am thinking the soil is pest laden or worn out but i do muck heavily the whole area, at least every second year and the potatoes every year and rotate them but still this happens. I think I should give spuds a rest for two years - any thoughts?
Regards,
Ian.
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michael brenock
Rank attained: Chlorophyll for blood


Joined: 12 Aug 2008
Posts: 1275
Location: cork

PostPosted: Tue Oct 04, 2011 10:05 pm    Post subject: Reply with quote

if there is no hole on the skin of the potato then it is not slugs or wireworm. If there is a hole on the skin then slugs probably caused it but other pests like earwigs or woodlice may be present. Common scab is the only problem that would fit the description you give. If it occurred in most stalks then it may be a soil problem or nutrition problem and it may have been transmitted from the seed. A picture would be great as it can be hard to describe diseases and pests in vegetables accurately. Keep on growing potatoes in new plot each year and feed with compost and balanced manure, high Potassium and low Nitrogen.
michael brenock horticultural advisor (retired)

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michael brenock
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Sive
Rank attained: Chlorophyll for blood


Joined: 18 Apr 2008
Posts: 1731
Location: Co.Wexford

PostPosted: Tue Oct 04, 2011 10:07 pm    Post subject: Reply with quote

I think the damage simply may be due to wet weather after a very dry period. It's been a strange summer....very dry at times, and potatoes need regular watering.
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Gautama
Rank attained: Silver Birch Tree
Rank attained: Silver Birch Tree


Joined: 29 Aug 2008
Posts: 156
Location: Cork

PostPosted: Wed Oct 05, 2011 9:34 am    Post subject: Reply with quote

I'm guessing watering too.
I'd a great crop of earlies but my mains were very small. It only dawned on me the other day where I went wrong: I rarely watered my mains. It was a very dry summer in Dublin but because the weather was fairly cold I didn't think about the need to water.
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Sive
Rank attained: Chlorophyll for blood


Joined: 18 Apr 2008
Posts: 1731
Location: Co.Wexford

PostPosted: Wed Oct 05, 2011 1:45 pm    Post subject: Reply with quote

OOOps Michael....your reply wasn't yet posted when I put my twopence worth in !
I would hesitate to offer advice after Michael has done so !
However I use the Dr D.G.Hessayon Vegetable and Herb Expert book all the time whenever we have potato issues, as it has good illustrations and that book describes something called "hollow heart" which seemed to fit Ian's description.
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Lius
Rank attained: Silver Birch Tree
Rank attained: Silver Birch Tree


Joined: 12 Mar 2009
Posts: 191
Location: Ballinteer, Dublin

PostPosted: Wed Oct 05, 2011 7:48 pm    Post subject: Reply with quote

I'm glad to see other member have had the same problem as me with their main crop of spuds this year. I was afraid my attempt at "Square Foot Gardening" this year didn't suit main crop spuds even though everything else did well even the early spuds. It was also my first year planting a main crop of spuds as previous I did not want to grow spuds that I had to spray, so this I tried blight resistance Sarpo Mira which gave a large number of smaller (tasty-tasty) tubers; I also suspected that I hadn't watered them enough, now I know. Live and learn.
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