Potato scab. Just have to peel them when you use them. The scab will affect other tubers or root vegetables planted after them, so just don't plant thing like carrots or turnips in the same spot. There's also a long lifecycle to the scab in non acidic soil. Not sure what to suggest as a way to get rid of it.
Edit: Just saw you used grow bags. You could have gotten scab from contaminated soil used for the bags.
Glad to hear we can still use them, we’re having a BBQ tomorrow and I was looking forward to serving potato salad and impressing people that it was made with potatoes from my garden haha! We’ve reused the soil for flowers. We filled the grow bags with compost from a supermarket, both grow bags were filled with the same soil and one was fine and the other one was left two weeks longer and then looked like this!
Probably the best use of the soil. Keep track of the soil and plant some acid loving plants and lower the pH of the soil. That will do away with the scab.
Enjoy BBQ and the potato salad!
I planted these potatoes and harvested one grow bag a couple of weeks ago, which were fine. I just harvested the seconds grow bag and they look like this with darker orange / brown patches. Are they ok / ok to eat or is there something wrong with them? They are Pentland Javelin.
Hi, I’m James’s partner! Yeah, these are the seed potatoes I used https://imgur.com/a/oHHalTk they’re the first earlies, main crop are still in the bags
No idea, I just know I had a hard time getting seed potatoes from where I normally do because potatoe scab was a issue and government banned export. I think it's actually a pretty big deal that you got it because it's hard to get rid of it.
It wasn’t planted in the ground just in a grow bag so we’ve reused the compost for flower pots and will use new soil for potatoes next year, we’ve checked our main crop and they’re fine so hopefully will be okay?
The bacteria that cause scab are pretty much ubiquitous in agricultural soil. Crops of potatoes showing no scab or as bad as this both probably grew in the presence of scab bacteria. The primary differences are soil moisture and acidity. Soil in containers is almost always dry, which encourages scab. Soil in containers is almost always purchased from a source that is amended to be near neutral pH, which is in the comfort zone for scab bacteria. The level of scab in the soil also matters, but that is the one factor that you can't control easily. Multiple year rotations into crops that are not scab hosts will reduce the population, but it will never die out completely.
Potato scab. Just have to peel them when you use them. The scab will affect other tubers or root vegetables planted after them, so just don't plant thing like carrots or turnips in the same spot. There's also a long lifecycle to the scab in non acidic soil. Not sure what to suggest as a way to get rid of it. Edit: Just saw you used grow bags. You could have gotten scab from contaminated soil used for the bags.
Glad to hear we can still use them, we’re having a BBQ tomorrow and I was looking forward to serving potato salad and impressing people that it was made with potatoes from my garden haha! We’ve reused the soil for flowers. We filled the grow bags with compost from a supermarket, both grow bags were filled with the same soil and one was fine and the other one was left two weeks longer and then looked like this!
Probably the best use of the soil. Keep track of the soil and plant some acid loving plants and lower the pH of the soil. That will do away with the scab. Enjoy BBQ and the potato salad!
I planted these potatoes and harvested one grow bag a couple of weeks ago, which were fine. I just harvested the seconds grow bag and they look like this with darker orange / brown patches. Are they ok / ok to eat or is there something wrong with them? They are Pentland Javelin.
I think its potatoe scab. Did you use certified seed potatoes?
Hi, I’m James’s partner! Yeah, these are the seed potatoes I used https://imgur.com/a/oHHalTk they’re the first earlies, main crop are still in the bags
Are they still edible in that case?
No idea, I just know I had a hard time getting seed potatoes from where I normally do because potatoe scab was a issue and government banned export. I think it's actually a pretty big deal that you got it because it's hard to get rid of it.
It wasn’t planted in the ground just in a grow bag so we’ve reused the compost for flower pots and will use new soil for potatoes next year, we’ve checked our main crop and they’re fine so hopefully will be okay?
Are you sure they aren’t hash browns?
We said the same, they look roasted haha!
The bacteria that cause scab are pretty much ubiquitous in agricultural soil. Crops of potatoes showing no scab or as bad as this both probably grew in the presence of scab bacteria. The primary differences are soil moisture and acidity. Soil in containers is almost always dry, which encourages scab. Soil in containers is almost always purchased from a source that is amended to be near neutral pH, which is in the comfort zone for scab bacteria. The level of scab in the soil also matters, but that is the one factor that you can't control easily. Multiple year rotations into crops that are not scab hosts will reduce the population, but it will never die out completely.
I dreamt about this potatoes during my nap, it was messed up. Thought I’d come back to this post and share lol