Hi Bob,

You don't have your zone or location listed, so it's going to be hard to know for sure what is happening to your tomato plant. Also, a clear picture or two would help. That being said....

It is normal for the older leaves on a tomato plant to die as the seaon progresses, but you may have other issues.

To be able to suggest what might be wrong with your plant, it would be helpful to know more about the environment it is in. So, here are the "usual" questions:

What growing medium are you using? How large is the container? Is it self-watering or do you manually water it? Is the container in full sun, part sun or shade?

How often do you water? Have you checked the moisture of the growing medium or soil 3-5" below the surface? Is it dry, just right, or soggy? Are you feeding the plant? How often? What are the NPK values of any fertilizers you are using to feed it? What has the weather been like in your area?

The more information you can give us, the better the chances that someone can give you an accurate diagnosis.

Betsy