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J from Cincinnati, Oh writes

How often should I apply Hi - Yield Manganese Sulfate Granules on blue spruce trees with a magnesium deficiency?


Hi-Yield Manganese Sulfate Granules  can be used on trees.  Per the label: For Large Shrubs and Trees: use ½ lb. per tree.  If symptoms are severe, apply every two to three months

Answer last updated on: 09/14/2020

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