Malnutrition?

[sjamesNorway]

I need some help identifying this problem. All the plants in my greenhouse are in containers with the same mix. This (Joe's Pink Oxheart) is the only one with these symptoms.
I'd be grateful for advice,
Steve

[Ricky Shaw]

The one variety that displayed like that last year was Cosmonaut Volkov and I took the puckering on the leaves to be mag deficiency. Most noticeable in the oldest growth, but still vaguely visible on higher leaf sets. These plants carried heavy foliage were the first to come under a fruit load, I took it as a bellwether and resumed full strength nutrient levels on all plants after having backed off during a hot spell fearing evaporation was increasing fertilizer build-up.

I'm not sure my diagnosis was right, but the plants grew through it and got healthier, going on to be excellent producers.

[RayR]

Since we can't see the underside of the leaves from here, look for small blisters along some of the veins which would indicate Edema. Since some varieties are more susceptible to Edema than others and it's more common in plants grown indoors, that would be my first suspect.

[sjamesNorway]

Originally Posted by Ricky Shaw

The one variety that displayed like that last year was Cosmonaut Volkov and I took the puckering on the leaves to be mag deficiency. Most noticeable in the oldest growth, but still vaguely visible on higher leaf sets. These plants carried heavy foliage were the first to come under a fruit load, I took it as a bellwether and resumed full strength nutrient levels on all plants after having backed off during a hot spell fearing evaporation was increasing fertilizer build-up.

I'm not sure my diagnosis was right, but the plants grew through it and got healthier, going on to be excellent producers.

My first thought was mag deficiency because of the puckering, but this is showing mostly on higher leaf sets.

Steve

[sjamesNorway]

Originally Posted by RayR

Since we can't see the underside of the leaves from here, look for small blisters along some of the veins which would indicate Edema. Since some varieties are more susceptible to Edema than others and it's more common in plants grown indoors, that would be my first suspect.

I just checked. There are no blisters.

Steve

[edweather]

Not sure.....maybe remove the few leaves and see if any more develops.

[RayR]

Originally Posted by sjamesNorway

I just checked. There are no blisters.

Steve

OK, so there is no obvious signs of Edema and that variety is the only one exhibiting those symptoms of stress. The possibility of insect or mites you have already investigated I suppose? I can't see any obvious nutrient deficiency or excess. The rest of the plant is otherwise healthy?
If all that holds true then I would just leave it alone and see if anything else develops.

[bower]

I will commiserate because starting to see leaf trouble on some of my plants which are still in beer cups on account of the bad weather now two weeks overdue for transplant.

I don't know if it is insects, physiological, cold stress or nutrient deficiency. But yellow and orange fruited varieties always seem to be the first.
So I just wanted to comment, that specific varieties can be more susceptible to any or all of the above causes.

I am going with the precautionary principle and removing leaves or parts of leaves affected, in case it is a tiny pest issue that could spread.
Fact is, those dead bits are not functional for the plant anyway, so removing it can only be a plus.

[sjamesNorway]

Thanks all for the tips so far. I guess this is mostly a wait and see situation. I have removed the affected leaves. The rest of the plant looks healthy.

Steve