University of Florida

Deficiency of Manganese

There is probably a deficiency of Manganese. Leaflets of pecan are reduced in size, cupped and wrinkled; resembling a "mouse ear."

Plant is a dicot (broadleaf tree or shrub)

  • Symptoms are exhibited by the new leaves or recently mature leaves
    • Leaves are not in rosettes
      • Leaves are usually not chlorotic
        • Leaves not elongated or narrow
          • Leaves small, some plants with short internodes, usually without tip dieback
            • Leaves have mouse ear shape

Manganese Deficiency in Pecan (Carya illinoiensis)

Manganese Deficiency in Pecan (Carya illinoiensis)

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