I get blight on my tomato plants. What can I use to cure it?
Certified GKH Gardening Expert
If it is, indeed, blight, then it will have to be cured using copper fungicides, or sulfur fungicides. If it is a deficiency, which is often much more common, then this will have no effect on it. Can you include a photo of the damage? This will help me to identify the problem, and offer a good solution.