Small necrotic spots first appear on primary leaves which later merge to affect the whole leaf, forming a web over the plant and leading to defoliation. Therefore, cultural practices such as mulching can be highly effective in suppressing the disease
 Poyamba, madontho ang'onoang'ono ouma amaoneka pamasamba akungonga omwe amagwirana ndikufalikira tsamba lonse, kupanga kangaude pambewuyo, kenako kuchititsa kuti masamba agwe. Choncho, kasamalidwe koyenera monga kuphimbira mbewu kukhoza kuthandiza kufooketsa matendawa