Paddy and I surfed for days trying to identify which wilt we had. The easiest thing to do is to search google images for pictures of wilt that you can compare to your own.
There are many types of Wilts that affect tomato plants and many hybrid tomato plants are designed to be less succeptable to wilts.
Having said that we’re still unsure which wilt we have. It’s affected both the tomato and the cherry tomato plants. There is one plant we have that doesn’t seem to be affected and it should be written on the plants plastic tag – which we threw away when we planted it.
It’s something to remember that you might not want the plastic tags in your messing up your green garden but they are handy to find out the particular breed for replanting if it does well in your garden.