Yellow Bells with Bacterial Canker: Prevention & Cure
Tecoma stans
Serious bacterial disease affecting stone fruits and tomatoes caused by Pseudomonas syringae or Clavibacter michiganensis. Creates sunken lesions that ooze sap.
ð Symptoms
- âĒ Sunken water-soaked lesions
- âĒ Dark cankers with raised edges
- âĒ Amber sap oozing
- âĒ Branch dieback
- âĒ Brown vascular streaks
â Possible Causes
- â Pseudomonas syringae bacteria
- â Contaminated tools
- â Rain splash
- â Cool wet weather
ð Treatment
Quick Fixes
Emergency pruning
Remove all infected branches immediately
Copper application
Heavy copper spray coverage
Organic Treatment
Prune infected areas
Cut 15cm below visible infection
Apply copper spray
Spray entire plant with copper hydroxide
Remove debris
Clean all fallen material
ðĄïļ Prevention
- â Sterilize pruning tools
- â Prune in dry weather
- â Remove infected debris
- â Improve air circulation
ðą Care Guide: Yellow Bells
ð§ How to Water
Water moderately during establishment; once established, Yellow Bells is drought-tolerant and needs watering only every 8-12 days in summer. Allow the soil to dry between waterings to prevent root rot. Reduce watering in winter.
âïļ Lighting
Requires full sun â at least 6-8 hours of direct sunlight per day for optimal flowering. Avoid shaded spots, as insufficient light reduces bloom production significantly.
ðŠī Ideal Soil
Plant in well-draining soil. Tolerates poor, sandy, and even slightly saline soils. Mix garden soil with coarse sand or perlite to improve drainage. Ideal pH range is 6.0â7.5.