Quick Answer
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Common Symptoms
Possible Causes
Step-by-Step Diagnosis
Step 1
Observe the tree from a distance to assess its overall lean, shape, and foliage density.
Step 2
Inspect the trunk up close for deep cracks, cavities, peeling bark, and fungal growths.
Step 3
Tap the trunk with a rubber mallet, listening for hollow sounds that indicate internal decay.
Step 4
Examine the branches and leaves for deadwood, discoloration, wilting, or signs of insect damage.
Step 5
Check the base of the tree and root flare for decay, mushrooms, girdling roots, or heaving soil.
Step 6
Look carefully on the ground and in bark crevices for sawdust-like frass, a clear sign of boring insects.
DIY vs Professional Costs
| Repair Type | DIY Cost | Professional Cost | Time Required |
|---|---|---|---|
Arborist Consultation | $0 | $75 - $250 | 1 hour |
Pruning small branches (<2" thick) | $50 - $100 | $200 - $600 | 1-2 hours |
Pruning large branches (>3" thick) | N/A | $500 - $2,000 | 2-4 hours |
Pest/Disease Treatment | $20-100 | $100 - $500+ | 1 hour |
Full Tree Removal | N/A | $800 - $6,000+ | 4-8+ hours |
When to Call a Professional Tree Service
- When you see large, dead, or broken branches hanging in the tree.
- If the tree develops a sudden lean, especially after a storm.
- You discover large, deep cracks or hollow spots in the trunk or major limbs.
- There are shelf-like fungi (conks) or mushrooms growing on the trunk, a sign of internal rot.
- The tree is near power lines, your house, or a neighbor's property, and you suspect it's unstable.
- The foliage dies back suddenly or the tree defoliates completely out of season.
- The job requires a chainsaw and a ladder - a combination that should never be used.
Prevention Tips
- Water trees deeply but infrequently during dry periods to encourage deep root growth.
- Apply a 2-3 inch layer of mulch around the tree, but keep it from touching the trunk to prevent rot.
- Protect the trunk from damage by lawnmowers and string trimmers.
- Have young trees pruned by a professional to establish a strong, stable structure for the future.
- Avoid compacting the soil over the root zone with vehicles or heavy equipment.
- Schedule a professional check-up every 3-5 years for mature trees near your home.
Frequently Asked Questions
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