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The disease is transmitted through stem cuttings, use healthy planting materials obtained from plants without symptoms
Plant resistant varieties e.g. Bankyehemaa and Esam bankye sourced from RTIMP or MoFA Agricultural Stations
Disinfect farming tools in bleach (5 parts of bleach to 95 parts of water)
Remove old cassava plant debris from previous plantings and burn after harvest
Avoid planting on land with history of CBB. Fallow previous fields for a period of 3-5 years if pressure on land is low or rotate cassava with legume or grains
Avoid transferring planting materials from CBB endemic areas to new cassava fields
Monitoring
Monitor cassava field regularly (every week) after sprouting for symptoms of the disease such as dieback, angular brown or black blight lesions especially at the beginning of the wet season
Examine leaves for water soaked lesions and gummy exudates
Implement control when symptoms are seen at any stage of growth
Direct Control
Rogue and burn infected plants that have just appeared to prevent spread
At the first sign of the disease immediately harvest mature roots and destroy all remaining plants and plant debris by burning
Direct Control
Restrictions
There are no direct chemical controls for CBB
AUTHOR(S): Moses, E (CSIR-Crops Research Institute) and Woode, R (Ministry of Food and Agriculture)
