Stem deformation occurs in some susceptible cultivars causing the stem to become brittle and easy to break by wind action (Ikot un and Hahn, 1992).
The deeper cankers can block translocation of vital minerals and supply of nutrients to active growing regions ,
which cause poor plant vigour,
severe wilting and defoliation (Van der Bruggen and Maraite, 1987).
CAD survives in cassava seeds and transmission through