cassava farming

Angel

I have observed some white waxy secretions at the apical point coming down the stem of some of the cassava plants on my farm. Again the terminal point has compressed together with the leaves into bunches. These have prevented the cassava plants from growing like I expected. Please advise me as to what to do to get rid of this problem.

Prince

Spray with fenitrothion or any suitable chemical at 60-80mls/15Its.
Uproot affected plants and destroy by burning if the plants are young.
Select healthy cassava cuttings.
Use cuttings taken from the middle, brown portions of the stem and free from pests and diseases.