Bacterial blight

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A.A. Seif & A.M. Varela, icipe
Is this a Minor Pest?
Minor Pest Title

Bacterial blight ( Xanthomonas campestris p.v. malvacearum)

Minor Pest Description

The bacterium is transmitted through seed and water splash. Symptoms consist of spots on leaves and pods. Leaf spots are initially soaked with water and are more obvious on the underside of leaves. They are restricted to the veins and are angular in shape. Spots on petioles are elongated, sometimes slightly sunken and blackish. Spots on pods are initially water-soaked and round. Later, they join together and turn oily black. All spots appear waxy and shiny.


Minor Pest What to do.
  • Use certified disease-free seeds.
  • Avoid overhead irrigation.
  • Avoid working in the field when wet.
  • Remove crop debris after harvest.
  • Spray with copper-based fungicides. For more information on Copper-based fungicides click here.
Minor Pest Position
Minor Pest Firstcontent
Pest Type
Host Plants