Assuming that blight is either a bacteria or fungus and seems to be soilborne, is it possible to kill this disease in the soil (using organic methods of course) instead of treating the plant on a weekly basis?
I should add here that I live in SE Iowa. The soil in my veggie garden is primarily clay, but by adding mulches and compost for several years now the clay is getting much looser.
The past two years my poor tomatoes have been hit by blight (bell peppers too). Crop rotation has not helped. This year I will try some of the organic remedies I have seen on the Internet, but I'd still like to know if I can get this disease out of the soil for good.
Thanks for any insights you can send my way.
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