Tomato plant leaves curling/flipping

[pampered_mom]

I've been watching a few of our tomato plants and am a bit concerned a number of the leaves on a handful of plants are curling up and turning over. I'm a bit puzzled as to what it could be. They all started out so healthy!

I'm in the midwest, zone 5. It doesn't seem like curly top virus or pseudo curly top virus are real common here. It also doesn't look like most of the pictures I've seen of common foliage problems. I've got pictures over here. Any thoughts?

[Carson]

I don't know but I couldn't not reply because I have some plants doing the same thing! It seems to be on my one plant which is a 'Roman Candle' (small yellow pear) tomato, not any of the others. Do your leaves flatten out better as they grow?

[Talula Fairie]

Doesn't look like a virus to me. Is it hot out when they do this? Have you checked them at night or in the early morning to see if they're still like that? Tomato plant leaves curl for a variety of reasons...I know mine do it sometimes in the late afternoon/early evening if they get too hot and the soil is a touch on the dry side. They usually perk up by the next morning though. It's also happened once after a really heavy watering.

these links might help
http://forums.gardenweb.com/forums/l...245322616.html

http://www.ppdl.purdue.edu/ppdl/expe...Leaf_Roll.html

[pampered_mom]

It's doesn't seem related to watering status or temperature. I actually first noticed it a few weeks ago and it was relatively cool then (high 60s/low 70s). In doing a search on leaf roll it seems like they typically talk about it being the lower half of the plant whereas it seems on my plants it's at the top of the plant.

I've seen this issue on at least two of the plants for a couple of weeks now. Watering them doesn't seem to fix it. Should I let the soil dry out more and see if that fixes it?

Anyone know if Curly Top Virus is common in the midwest?

ETA: The two or three plants I've seen it on the longest haven't seemed to change all that much - they look pretty much the same as they did when I first noticed it.