Tomatoe plants?

In the dark???????

Put them in bigger pots, those are temporary

Also they could have a fungus. I would toss them in a big plastic bag and throw away.

Can you post a photo or describe the plant symptoms more?

If the plants outdoors and you’re having a lot of rain that could be contributing to a problem—it is very possible that weather conditions particularly the overwatering has caused your troubles.

Abiotic causes have been coming back on our plant pathology diagnostic forms at our master gardener helpdesk. The most common abiotic plant problem in a garden is over watering.

In our zone 7 -central Virginia location is over watering is causing a lot of plant death in our local home gardens and a green houses.

Here’s an article for your reference.

http://anneofgreengardens.com/gardening-topics/plant-problems/abiotic-problems/

Thank you

Thank you

Thank you

Thank you