Tomato Question

[Sonata]

I've got loads of Gardener's Delights which are still doing well (even still flowering, fat use that will be). However, the two "mini Italian plums" aren't doing so well. Both are droopy and one has gone all yellow. I don't think it's blight (no necrosis that I can see) - have they just had it? When do tomato plants die off if they haven't been killed by disease?

[rustylady]

Are they in a greenhouse, or in open ground?

[Sonata]

They're in pots on my patio - uncovered.

[Pumpkin Becki]

Sonata, could it be overwatered?

[Sonata]

Ha ha, no. Under(not)watered maybe? Thing is, my GDs seem fine. *scratches head*