Chlorosis describes a condition in which a tree’s foliage loses its healthy green color and fades to a pale green or yellow hue. Chlorosis is often caused by deficiencies of the micro-elements iron, manganese or zinc and is common to oak and maple trees. Leaves turn progressively paler green to yellow, with only main veins of the leaf remaining green. Growth is slowed or stunted. As chlorosis continues, the leaf veins turn yellow, the leaf dies and falls off. Whole limbs may dieback and eventually the death of the tree could occur.
Host Trees for Chlorosis
Oak, Birch, Maple.