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HS1131: Dooryard Citrus Production: Citrus Greening Disease

Figure 15. Leaves showing mineral nutrient deficiency symptoms and greening disease symptoms. Nutrient deficiencies are manganese (top left), iron (top right), zinc (bottom left), and magnesium (bottom center). Note the uniformity (symmetry) of the mineral deficiencies; the left and right halves of the leaves are mirror images of one another. The greening leaf (bottom right) does not show this symmetry. (Nutrient deficiency photos courtesy of T. A. Obreza, University of Florida. Greening photo by T. M. Spann, University of Florida.)