Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00001633
11/12/99
Manganese deficiency
Manganese deficiency symptoms are most often seen on
maples. Symptoms are yellow leaves (Vis. 1) with green
veins. Most affected are the youngest leaves.
Applying manganese chelates or using trunk implants will
suppress the symptoms. Branches sprayed in the spring
with a manganese chelate will green up if manganese is the
deficient nutrient.
Trunk implants will prevent the symptoms from occurring
for more than one year. The tree should be kept healthy
through fertilizing and watering so the implant wounds
heal as quickly as possible. The disadvantage of this
method is the need to drill holes in the trunk, as
discussed under iron deficiency.
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mentioned. This information becomes public property upon
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This file was generated from data base ZZ on 01/19/00.
Data base ZZ was last revised on 11/12/99.
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