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Potato plant wilting
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That is a moth, but it's completely unrelated. This was taken on my bedroom windowsill, and that's a dead clothes moth. We have a minor infestation right now.
I did consider insect damage, but I wonder what could have caused it if it is. Wireworms aren't big enough to cause such damage, nor are leatherjackets, really, and either way I'd have thought I would have seen at least one or two if they were the cause. Cockchafer larvae is a possibility, but they'd have to be in the soil in some numbers, and I'd have thought I would have noticed when I dug it over if that were the case.
Personally, I think it's probably either underground slugs eating the stems (perhaps the dry weather has driven them underground to more unorthodoxfood sources?), or some sort of physiological condition, perhaps splitting caused by drought or water following drought, and then the damaged stem snaps off completely in the wind or something.
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I wonder if it’s an insect,are any plants next to that one affected? Is that a moth in the photo -
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Originally posted by ameno View PostWell, like I said above, it doesn't seem to be blackleg. There's not blackening at all, and no rotting, either.
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Well, like I said above, it doesn't seem to be blackleg. There's not blackening at all, and no rotting, either.
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Originally posted by ameno View PostI will check for blackleg, but I rather doubt it's that. I mean, doesn't that take time to develop? These are maincrop; they've only been in 6 weeks. The leaves aren't even fully grown yet.
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Well, I pulled up the wilting plant, and the stems were indeed severed about 3 inches below the soil surface.
What by, though, I don't know. It's not black at all, or otherwise discoloured, or soft and pappy, so I'm fairly sure it's not blackleg or any other kind of rot.
The stems seem to have a hollow groove carved into them, and at one point that goes all the way through and severs the stem.
The worrying part is that I carefully brushed the soil away to check on other potatoes, and several of them have the same damage (a deep hollow groove running up the stem for a couple inches), although as yet it hasn't severed the stems of any of the others.
Here are some photos of the damage bits:
https://i.imgur.com/wkk8G65.jpg
https://i.imgur.com/Ps5Tlpf.jpg
https://i.imgur.com/iMGrryN.jpgLast edited by ameno; 26-05-2020, 08:25 PM.
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I will check for blackleg, but I rather doubt it's that. I mean, doesn't that take time to develop? These are maincrop; they've only been in 6 weeks. The leaves aren't even fully grown yet.
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Check the bottoms of the stems for blackleg - the stems go black and rot at ground level and the first sign of this is often that the plant wilts. The rot spreads down to the potatoes which then go black and rotten. Potatoes that are harvested when the disease shows are ok to eat, although you often find a small black area where the potato joins the plant.
I have found that if you remove affected plants the disease doesn't spread to the others, but I wouldn't risk leaving a plant with blackleg in the soil.Last edited by Penellype; 26-05-2020, 06:28 AM.
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I would definitely check for breakage or slug damage, failing that carefully remove the soil to check the tubers of the wilting plant to see if there is anything wrong with them
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I’m watering daily! In the heat and the wind they’ve been taking a bit of a battering!
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Originally posted by Jungle Jane View PostIt was windy,did you have a close inspection to see if there were any breaks in the stems? Where did the seed potatoes come from,were they proper or from the supermarket?
I haven't checked the stems properly yet; it's possible something severed them. I shall give them a gentle tug tomorrow, and see if they are still well anchored.
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Me and the local farmers are watering just now, every couple of days for mine with a hose for 5 minutes.
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It was windy,did you have a close inspection to see if there were any breaks in the stems? Where did the seed potatoes come from,were they proper or from the supermarket?
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Potato plant wilting
I noticed this evening that just one of my potato plants was badly wilting. It was absolutely fine yesterday, and the whole thing is still green and healthy (apart from the wilting), so I don't think it's a disease of any sort. It seemed like normal dehydration, but the soil wasn't parched (it was a bit on the dry side, though), and the others were all fine.
For now, I've given it a good soaking, but any ideas what might be causing it?Tags: None
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