RandyRocket
Well-Known Member
Is this a zinc problem? The GrowFAQ has this to say.
Deficiency-Symptoms: A deficiency of zinc will result in the yellowing of chloroplasts between leaf-veins, usually with purplish spots of dead cells on leaf-surfaces; older/lower leaves are the first to show symptoms. Vegetative-growth is retarded and deformed, and floral-growth is reduced. Excessive Zn-levels can initiate an Fe(iron)-deficiency.
Deficiency-Symptoms: A deficiency of zinc will result in the yellowing of chloroplasts between leaf-veins, usually with purplish spots of dead cells on leaf-surfaces; older/lower leaves are the first to show symptoms. Vegetative-growth is retarded and deformed, and floral-growth is reduced. Excessive Zn-levels can initiate an Fe(iron)-deficiency.