Quote:
Originally Posted by barnetmill
I was wondering what the physiological basis of the yellow panels. Could it be an indication of some sort of osmotic imbalance?
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Due to overwatering, the roots are unable to uptake nitrogen. Servicing of the leaf panels is the first to suffer. The symptom is often referred to as chlorosis -- a lack of chlorophyll in the leaves. An inexperienced or greedy nursery will sell you an iron supplement to "fix" the problem. Iron chlorosis
is a serious problem in alkaline soils and certainly I sell a lot of iron supplements to gardeners in the Great Basin region of the U.S. For this peach though, the problem appears to be over damp roots.