Absolutely true. More details needed. Same grower for both. No, do not use pesticides. No sign of white flies. No smokers here unless at the grower. Potting soil a standard from Home Depot. Don't recall name. Did not fertilize -- Both plants planted into a large pot. Perhaps that pot needed to be disinfected. Been using it for about 3 years without any probem with tomatoes. Could be our pot or could be the grower has a problem. Thanks very much for your input. I'll just hope for the best - it is setting tomatoes as you can see from the photo.

It looks like herbicide damage although it doesn't make sense why lower part of plant isn't effected. Check leaves on other broadleaf plants within 8-10 feet for curling.

Not pesticides, Herbicides. Weed and feed lawn fertilizer, even an open bag near the plant can cause herbicide damage, or a cap off a bottle of liquid weed killer. 2-4-d, roundup ect....

Is there any yellowing in the infected leaves, dying parts, bullseyes or light green spots? It appears to be a very large plant to be transplanting, can you take a picture of the entire plant? Are the deformed leaves isolated to just that one small area or is it also in other areas of the plant?

If it was a virus it would most likely be the cucumber mosaic virus, but it also effects lower leaves too, and there should be some kind of color on the leaves. Herbicide damage is very possible and much more common than a virus, so are the deformed leaves isolated to one spot?

Transplanting a big plant with a tomato load isn't a good idea and those tomatoes should of been removed and the plant pruned down a bit when you transplanted it. Transplanting will disturb the roots causing transplant shock and will limit Nutrient uptake until the roots settle in, and any nutrients it can transport first goes to the Tomatoes, then regrowing the roots and finally new leaf growth if anything is left.. This is a possibility so give it more time.

Sorry for confusion re - size -- they were both small at time of transplant. The one in the picture has grown to that size since transplant from small pot. No yellowing -no lawn fertilizer. Now here is the interesting part - I have a couple of small plants that overwintered in another whole area. I pulled a couple of them and put them in a large container. They developed that weird leaf as well. I have cut those leaves off and we'll see what happens with them! There are other annuals that I planted in that container and they are fine . 'tis a mystery.

All plants ARE NOT equally sensitive to herbicides. So much so that it requires various ones for various weeds. Okra and tomatoes are especially sensitive to broadleaf herbicides. I don't mean to take this down a rabbit hole while neglecting all other possibilities but you shouldn't make assumptions on what you say you don't understand.

As remote as it might be,is there any possability of some vindictive individual sprayed something into air up to 100 feet away? I would never have thought to ask had I not had it happen once to a client.

Thanks Klem - not really making any assumptions. Just haven't got a clue about this affliction. My only hope is that the tomatoes are able to develop and be as good as they have been in the past 20 or 30 years since we have been growing them. Kinda hard to know the second statement. Not aware of any vindictive people in the area -- but who knows!! Thanks again.