Bacterial Severity: High
⚠️ Contagious
Bacterial Canker: Urgent! How to Save Your Plant
Serious bacterial disease affecting stone fruits and tomatoes caused by Pseudomonas syringae or Clavibacter michiganensis. Creates sunken lesions that ooze sap.
Spread speed
Medium
Recovery time
28 days
🔍 Symptoms
Main Symptoms
- ! Sunken water-soaked lesions
- ! Dark cankers with raised edges
- ! Amber sap oozing
- ! Branch dieback
- ! Brown vascular streaks
Visual Signs
Sunken water-soaked lesions on stemsDark brown to black cankersGummy amber sap oozingWilted branchesBrown vascular streaksBirds eye spots on fruit
Affected parts: StemLEAVESFlowersFruitsWhole plant
❓ Possible Causes
- → Pseudomonas syringae bacteria
- → Contaminated tools
- → Rain splash
- → Cool wet weather
💊 Treatment
⚡
Quick Fixes
~21 days
1
Emergency pruning
Remove all infected branches immediately
2
Copper application
Heavy copper spray coverage
Materials needed:
Copper hydroxide
🌿
Organic Treatment
~28 days
1
Prune infected areas
Cut 15cm below visible infection
2
Apply copper spray
Spray entire plant with copper hydroxide
3
Remove debris
Clean all fallen material
Materials needed:
Copper spraySterile pruners
🔬
Expert Treatment
~42 days
1
Diagnosis confirmation
Verify bacterial canker vs fungal
2
Surgical removal
Cut 20cm below infection
3
Wound treatment
Cauterize or apply copper paste
4
Systemic treatment
Apply bactericide if available
Step by Step
- 1
Remove infected tissue
- 2
Apply copper spray
- 3
Sterilize tools
- 4
Monitor weekly
🧪 Solutions
🌱 Natural Solutions
- ✓ Copper spray applications
- ✓ Remove infected branches
- ✓ Cinnamon paste on wounds
💉 Chemical Solutions
- ✓ Copper hydroxide spray
- ✓ Streptomycin (where legal)
🛡️ Prevention
- ✓ Sterilize pruning tools
- ✓ Prune in dry weather
- ✓ Remove infected debris
- ✓ Improve air circulation
