Kitchen Garden Forum

I have grown tomatoes in my greenhouse using ring culture on gravel beds this year. Nearly all the plants got blight but as I was reluctant to give up on the whole lot, I removed the affected leaves and have had a crop of sorts. Now I'm wondering if I did the right thing, as the stems are all black and I think that is how blight spores transfer into the soil and can then affect next years crop. Does anyone know if blight spores will live on in the gravel or is it only soil that this happens with and if they do any suggestions for how to sterilse a tonne of gravel????
Thanks for your help
Louise

I don't have an answer I'm afraid, but I'd like to add to your query. I plant all my greenhouse tomatoes in the border soil. Do I need to change this before next year's tomatoes as I got blight in the greenhouse this year?
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Granny

Personally I wouldn't bother. I would just be careful next year that I don't let any water splash back up onto the plants. Blight grows in water particles on the plants.