Information and discussion for successfully cultivating potatoes, the world's fourth largest crop.
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#1 |
Tomatovillian™
Join Date: Jan 2010
Location: zone 6b, PA
Posts: 5,664
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This a.m. I found these few bad leaves on Yukon Gold and Red Norland plants.
![]() The cripsy brown leaf tip problem in the first pic was on the YG and the watery looking wetness along the leaf edges (top & bottom, 2nd & 3rd pic) was found on the RN. The latter reminds me a bit of Late Blight but there are no rings or fuzziness present yet and it seems too early in the season.Both were planted 3/27; RN emerged 4/10; YG emerged a week later. I thought both looks might just be different stages of the same problem but the damage isn't in the same place on the leaves. All the plants are completely hilled up and lightly mulched with shredded leaves as of last week. I could take pics of the rows if it would help but they are looking fine. Tia for any assistance- kath Last edited by kath; May 13, 2013 at 01:18 PM. Reason: addition |
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#2 |
Tomatovillian™
Join Date: May 2011
Location: bald hill area thurston county washington
Posts: 312
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does the underside of the leaves have a white powdery look? Does the lesion have a light green 'halo' around it? If yes to both of these...may be late blight.If not may be tip burn from hot dry windy weather, or from touching hot soil. Or it could be something else. I use the Ontario potato field guide to insects, disease, and defects....hope this helps.
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#3 | |
Tomatovillian™
Join Date: Jan 2010
Location: zone 6b, PA
Posts: 5,664
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![]() Quote:
Thanks, wingnut- kath |
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#4 |
Tomatovillian™
Join Date: Feb 2008
Location: Mid-Ohio
Posts: 847
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Looks kinda like frost damage
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#5 |
Tomatovillian™
Join Date: Feb 2012
Location: Maryland's Eastern Shore
Posts: 993
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__________________
George _____________________________ "The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. It is it’s natural manure." Thomas Jefferson, 1787 |
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#6 |
Tomatovillian™
Join Date: Jan 2010
Location: zone 6b, PA
Posts: 5,664
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Guess that could be it because it reminded me of the way my peas looked after they froze out the year I tried to cover them for protection. Although there hasn't been any sign of frost on the cars, etc., all other tender foliage has been covered during the past few nights and the low was 35-36 the night before I saw the damage (2nd & 3rd pics).
I think the first pic is just the usual hopperburn damage that I see every year a little later in the season- didn't think they were here yet. ![]() Thanks to all for the input. kath Last edited by kath; May 14, 2013 at 07:40 AM. |
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