Symptoms can appear on tender and matured leaves. Large circular, irregular, water soaked spots with black colour appear on leaves.
The exposed portion of the unopened leaves my rot.
Grey patches of irregular spots with brown margin are formed at the base of the leaf sheath.
The basal portion rots and the pseudo stem break away at the collar region.
The infection spreads to the underground plants and the rhizomes become rots.
Small light brown lesions appear in the green tender fruits which fall of in 3-6 days leaving the small fruit stalk. The tip of inflorescence also rot.
Removal and burning of infected plants.
Avoid moving of rhizomes from diseased areas to healthy area for planting
Provide proper drainage
Three sprays with Bordeaux mixture 1% in May, June, July