Xanthomonas axonopodis pv. vasculorum

Bacterial Disease

Xanthomonas axonopodis pv. vasculorum

Bacterial Disease

Xanthomonas axonopodis pv. vasculorum

Bacterial Disease

Xanthomonas axonopodis pv. vasculorum

Bacterial Disease

Gummosis causes two distinct symptoms in sugarcane plants. Mature leaves develop longitudinal stripes or streaks that are 3-7 mm in width and several centimeters in length. The stripes appear around the affected veins and near the tip. Initially the stripes are pale yellow in color and later turn brown. The affected tissues slowly dry up.

Infected canes are stunted with short internodes giving them a bushy appearance. When stunted canes are cut, a dull yellow bacterial ooze (gum) comes out from the cut ends. The vascular bundles are deep red.

Certain insects like flies plays vital role in disease transmission. Insect carry bacterium in their body for long time and transmit to plants.

Ref:USDA