Citrus > Cold Hardy Citrus
My trifolate orange has red vein down the middle
Unicyclemike:
On one limb there are leaves that have this red vein down the middle. Here is a photo. What is this?
kumin:
I see this on a few trees as the approach leaf drop in the Fall, especially if the trees are under stress. I've also seen in late Summer with bark/limb/root damage.
Millet:
Possible nitrogen deficiency. Symptom start out as yellow/orange veins with some green out on far side.
kumin:
Red veins showing on a girdled seedling.
Girdled section on red -veined seedling. Note that the growth below the girdle doesn't have red leaves. In addition, the bark below the girdle is a deeper green. The off-green bark may be an related to the red leaves.
Additional seedling showing red in leaf.
Millet:
looking at the first picture in the above post, I believe it is just fall coloration.
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