Silver Maple Decline with Mushrooms: Professional Assessment Needed

Mushrooms under your mature silver maple's canopy, combined with dead branches, indicate internal decay—likely a wood-decay fungus (e.g., Ganoderma, Armillaria, Laetiporus). The mushrooms are the fruiting bodies; the fungus has been inside for years.

What Mushrooms Mean

• Advanced decay in roots or lower trunk.
• Structural weakening—limb or whole-tree failure risk.
• Silver maples are prone to decay due to weak wood and poor compartmentalization.

Immediate Actions

1. Do not ignore. Decay fungi don't go away.
2. Contact Indianapolis Urban Forestry (link in original) for a free risk assessment.
3. Consider hiring a certified arborist with TRAQ (Tree Risk Assessment Qualification) for detailed evaluation.

Possible Outcomes

• Monitor if decay is limited and tree is in low-target area.
• Prune dead branches, reduce crown weight.
• Removal if decay is extensive near structures/high-use areas.

Mushrooms are a warning sign, not the cause. Get a professional evaluation to decide the tree's future.