CBN-V Video Archives - S8-13
The Role of Phytophthora on Cassava Storage Root Rot in India

Nair R.R., M.L. Jeeva and T. Makeshkumar

Central Tuber Crops research Institute, Thiruvananthapuram, India
rrknair@eth.net

        Severe rotting of cassava storage roots causes up to 50% crop loss in certain endemic areas of India. Constant association of Phytophthora sp with the disease was recorded. A Survey was conducted to determine the extent of spread of the disease. Characteristic symptoms as well as morphological features of the pathogen were described. Selective isolation of the pathogen from the soil and the role of biological control agents on soil population of the pathogen were attempted. Differential reaction of cassava varieties to infection by the fungus was also studied.

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