Bacterial leaf spot

Is this a Minor Pest?
Minor Pest Title

Bacterial leaf spot (Pseudomonas syringae pv. sesami)

Minor Pest Description

Light brown angular spots with dark purple margin appear in the leaf veins. Defoliation and death of plant may occur in severe leave and stem infection. Sunken and shiny spots appear on the capsules. Early capsule infection renders them black and seedless. The pathogen is seed borne. High temperature, rainfall and persistent humidity favour the disease.


Minor Pest What to do.
  • Hot water treat seeds: 10 min. at 52°C. For further information on Hot-water treatment of seeds click here
  • Use white seeded varieties. They are reported to be more resistant than coloured varieties.
  • Destroy crop residues.
  • Use resistant varieties, if available.
  • Cultivate at low humidity and temperature (change sowing date).
Minor Pest Position
Minor Pest Firstcontent
Pest Type
Host Plants