Diseases Of Cassava

By TamilNadu Agricultural University on 28 May 2016 | read

Diseases of Cassava

Indian Cassava Mosaic Virus Disease (ICMV) 

Mosaic symptom, reduction in leaf size, misshapened twisted leaves.  The affected plants stunted, tuber splitting and yield reduction.


Selection of setts from healthy plants Use of resistant varieties like MnGa-1

Sett rot / stem rot – Diplodia natalensis (Botryodiplodia theobromae)

It is found in stored setts and new planting in dry areas. Vascular strands show black discoloration and necrosis radiating from wounds. Epidermel blisters are produced under which the infected dark brown or black tissues can be seen. Masses of black pycnidia can be seen when the blister rupture.


Selection of healthy setts