Put in some vegetable beds in the garden. Squash, cucumber, beans and herbs all doing great. Tomatoes are producing but the foliage in getting brown and wilting. My guess is either too much water and need to raise the beds more, or too much sun. Any ideas from experience out there?

Mine too, I think it's too much water and not enough sun at the moment in Phuket. They were doing fine until the recent downpours.

What kinf of tomato? I can only get the local, Thai varieties to grow here, with much difficulty.

The soil also plays a role, the son in law brings me more tomatoes than we can eat, nobody else in the village but me even tries.Same with eggplants and some cucumbers.