The recommended treatment will remedy all nutritional problems. Other Symptoms Leaves are smaller than normal . This symptom will be most visible in the new growth, i.e., in the crown. Leaves drop . In cases of Zinc Deficiency, this symptom will normally indicate a severe or prolonged deficiency.
Leaves are deformed or twisted .
As with leaves dropping, this symptom will normally indicate a severe or prolonged deficiency of zinc. Crown leaves are smaller than normal . Plant growth is slow . Treatment Ideally, your first course of action would be to test the soil for a pH imbalance . If that were possible, you would want to make sure the soil had a pH between 5.8 and 6.2.