It looks like nobody wants to touch this question, so I guess I'll go ahead and plant my tomatoes and see what happens.

Is there another forum where I'm more likely to get an answer? Perhaps the Vegetable forum? But what do they know about fig trees? :)

I've had tomatoes about fifteen feet from a couple of fig trees for several years. Never thought about it or noticed anything unusual.

My vegetable garden is about 20 ft. from my Adriatic tree. I usually raise tomatoes, in addition to squash, zucchini, potatoes and other vegetables. I have never noticed a problem. However, I have read that, in root knot nematode (RKN) prone areas, fig trees should not be planted where a vegetable garden (tomatoes were mentioned specifically) had been planted. A couple of years ago, a friend of mine planted several fig trees I gave them. The one that they planted immediately adjacent to their garden spot grew noticeably more rapidly than the other figs, probably because of the water and manure!

A North Carolina State University website discussing fig tree diseases mentions that, in RKN prone areas, fig trees should not be planted where vegetables susceptible to RKN have been grown.

"Choose a planting site in which a fig plant has not been previously grown, or where root-knot susceptible plants such as tomatoes, okra, or tobacco have not been recently grown."

Here is a link that might be useful: Fig Diseases

Thanks for the responses.

I don't think nematodes are a problem here. The soil is almost all clay and organic matter.

I started the tomatoes from seeds. Nematodes don't follow the seeds, I presume since they are in the soil, and they aren't going to teleport here just because I planted a tomato, right?