Red rot (Colletotrichum falcatum)

Symptoms

• The most characteristic symptom of the disease is the drying up of the canes, which when split open will show characteristic red colouration of the internal tissues with horizontal white patches and the typical foul smell.
• The disease is mainly transmitted through infected setts and flowing water

Management

• Affected crop should be harvested as early as possible to prevent loss in yield and deterioration in quality and also to arrest further spread of the disease.
• The crop residues should be completely burnt after harvesting.
• When infection is noticed in the field, the affected clumps should be uprooted and burnt promptly.
• Infected crop should never be ratooned.
• Water should not be let into a healthy crop from diseased areas and as far as possible, the field may be kept free of standing water by providing drainage channels.
• In severely affected areas sugarcane should not be cultivated at least for one season during which paddy and tapioca can be cultivated.
• Seed setts should not be collected from diseased crops and from diseased areas.
• Movement of seed materials from diseased to healthy areas should be strictly quarantined.

Chemical Control

Extremely Toxic

Highly Toxic

Moderately Toxic

Slightly Toxic