Tree Pests & Diseases
Peach Tree Maintenance
Peach trees can produce well in Colorado with pruning and care, but they are vulnerable to borers, canker, leaf curl, aphids, and late frost injury.
- Species
- Peach Tree
- Botanical Name
- Prunus persica
- Group
- Ornamental Trees
- Tracked Problems
- 7
Seasonal Calendar
| Problem | Type | Active Season |
|---|---|---|
| Peach leaf curl | Fungus | Spring |
| Cytospora canker | Fungus | Spring–Fall |
| Peach tree borer | Insect | Summer |
| Aphids | Insect | Spring–Fall |
| Spider mites | Mite | Summer |
| Brown rot | Fungus | Spring–Summer |
| Freeze injury | Abiotic | Late Winter–Spring |
Pest & Disease Guide
Peach Leaf Curl
Common symptoms
- Red, puckered leaves
- Distorted growth
Treatment & management
- Dormant treatment
- Remove badly affected leaves
Cytospora Canker
Common symptoms
- Amber gum
- Sunken bark
Treatment & management
- Prune infected limbs
- Reduce stress
Peach Tree Borer
Common symptoms
- Gumming near trunk base
- Larval damage
Treatment & management
- Monitor trunk base
- Timed treatment if severe
Aphids
Common symptoms
- Leaf curl
- Honeydew
Treatment & management
- Rinse foliage
- Encourage predators
Spider Mites
Common symptoms
- Bronzing
- Fine stippling
Treatment & management
- Increase irrigation
- Rinse canopy
Brown Rot
Common symptoms
- Blossom blight
- Fruit rot
Treatment & management
- Remove infected fruit
- Improve airflow
Freeze Injury
Common symptoms
- Lost flowers
- Poor fruit set
Treatment & management
- Choose protected sites
- Delay pruning when possible
When to Worry
- Heavy trunk borer activity
- Repeated canker spread
- Major crop loss year after year
Mostly Cosmetic
- Minor leaf curl
- Light aphids
- Some mite damage
Notes
These can shorten tree life and reduce fruiting.
These often improve with pruning, sanitation, and irrigation.
Related Resources
Related Services
Great Western Tree Care
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