I was reading about nutrient deficiences in MJ and one of the symptoms is necrosis. I looked it up in the dictionary and it means; gangrene, mortification. As i read it necrosis is a sign of a problem, but as the dict. puts it, plant is dead, no problem anymore. (Edited by so x ited at 7:14 pm on July 1, 2003)
Necrosis is merely a condition. You can have necrotic patches on your leaves. Meaning there is dead tissue present. When you see necrosis you will know, even if you haven't seen it before.