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Maple Gall Mites: Consult a Tree Expert for Treatment

Gall Mites on Mature Maple: Sticky Honeydew Issue

The sugary substance is honeydew from mites/aphids. For a 20+ year maple, treatment options (systemic insecticides, horticultural oil, timing) require professional assessment.

Contact Jim Hyland, Allexperts Tree Expert (Home → Garden → Trees), former U.S. Forest Service, for specific control recommendations.

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