Rusty brown spots spreading..

Fishmon said:

Had the same spots recently. Spots and splotches came first followed by the telltale yellowing between veins. 1/2 doses of calmag and no more spots found. Mine was in veg and only found on large lower fan leaves. Removed the affected leaves but not sure if it was necessary to.

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My thoughts on the large dead ones. I had a similar problem, when I over fed P/N, but I left the large leaves on until they were hammered dead while fixing the soil. I believe this allowed the already damaged leaves to take the brunt of my f up. Then removed them before they contributed to any kind of decomposition diseases/pests. Seems to be all good again.

Anyhow, not sure if that helped at all. Have a great day!