I wasn't aware that any of them are claiming to "prevent blights". That would seem to be a rather specious claim since the "blights" fungi are airborne. Improved rootstock would seem to have little effect on airborne diseases. Who is making that claim as I'd like to read more about it?

I do know they claim increased resistance (rather than prevention) to the soil born disease problems like the various wilts.

Dave

I've grown 2 grafted tomatoes this year and last year. I wanted to see what the difference might be. Also grafted eggplant and pepper this year. I saved seed from last year's tomatoes and they seem to be doing just as well as they did last on grafted roots.

The biggest difference was with the eggplants this year. The grafted had big fruit earlier.

Penny