Iron Chlorosis

Category: science

A turf condition where grass leaves turn pale yellow due to a localized lack of chlorophyll production.

Iron chlorosis occurs when turf lacks iron, often triggered by high soil pH blocks or water-logged roots. Unlike a nitrogen deficiency that yellows the older leaves first, iron chlorosis hits the new growth, turning blades a pale neon yellow while the veins stay dark green.

Common Examples

• The pale yellow turf canopy was diagnosed as iron chlorosis, brought on by the high alkalinity of the concrete foundation runoff.
• Spraying liquid chelated iron provides an instant deep green color flush within hours, bypassing the soil root barrier entirely.