Bacterial Blight
Xanthomonas spp.
A bacterial disease caused by Xanthomonas species that enters plants through wounds or natural openings. The bacteria move systemically through the plant, causing severe leaf blight with characteristic water-soaked lesions and yellow borders.
Identification & Symptoms
What to Look For
Potential Damage
Lifecycle
Bacteria enter through wounds, stomata, or hydathodes. Once inside, they move systemically through the vascular system. The disease progresses rapidly under favorable conditions of high humidity and moderate temperatures. Bacteria can survive on plant debris and be spread by water, wind, and mechanical means.
Professional Treatment Approach
Remove and destroy infected plant material
Improve air circulation around plants
Avoid overhead irrigation
Apply copper-based bactericides preventively
Disinfect tools between plants
Plant resistant varieties when available
Recommended Mauget Products
Arborfos (Potassium phosphite)
Professional-grade treatment specifically effective against bacterial blight.
View Product DetailsCopper-based bactericides
Professional-grade treatment specifically effective against bacterial blight.
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