Sodium Toxicity - What to look for

Sodium Chloride on older leaves.
Salt (sodium) toxicity blackens and scorches leaf margins. Look for older leaves with darkened edges which later scorch tan and curl upwards (sodium) and scorching extending inward to form patches between main veins (chloride).

Salt affected vines will show poor growth of vines and will have early leaf drop beginning with the older leaves first.

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