Iron Deficiency - Apple

Symptom description

Symptoms always start at youngest leaves with yellow green, later lemon yellow and pale yellow interveinal chlorosis. Main veins still remain green. At strong deficiency veins become chlorotic too and necrotic areas appear near leaf margin. Severe deficiency produces symptoms at older leaves too. Often young shoots of one tree are different in grade of damaging.

Made worst by

High pH. Water logged soils. Calcareous soils. High copper, manganese or zinc soils.

Important for

New growth is healthy and vigorous. Fruit quality and yield may be improved.

Cause description

Severe Iron deficiency May be confused with magnesium deficiency. But magnesium deficiency produces symptoms at older leaves first.