Disease on crop
bacterialCitrus Canker on orange
Xanthomonas citri
Bacterial disease producing raised corky lesions on leaves, twigs, and fruit. Spread by wind-driven rain and contaminated tools. Quarantine-regulated in many areas.
- Disease
- Citrus Canker
- Pathogen type
- Bacterial
- Crop
- Orange
- Scientific name
- Xanthomonas citri
Citrus Canker on orange
Detailed guidance for this section is being prepared. Check back soon.
Symptoms on orange
- ▸ raised corky tan lesions surrounded by yellow halos on leaves and fruit
- ▸ premature defoliation
- ▸ twig dieback in severe cases
IPM controls
- ✓ Plant resistant varieties where available; lemons and limes are highly susceptible
- ✓ Avoid overhead irrigation; rain splashes spread bacteria
- ✓ Copper-based bactericides applied preventively during wet weather
- ✓ Sanitize pruning tools between trees with 70 percent alcohol or 10 percent bleach
Other crops affected by citrus canker
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