Cercospora leaf spot
Caused by: Cercospora canscensProblem Category: Fungal Disease
Symptoms: Chlorotic spots on upper surfaces of leaves; necrotic spots on leaves; masses of spores on lesions which resemble black mats on lower leaf surface; defoliation of plants; yellowing of leaves; circular, red lesions on leaves
Comments: Pseudospora an important disease in China; both diseases occur in Africa
Management: Remove all crop residue from field after harvest; plant disease-free seed
Control: spray 2 times 5% Cowdung+Asafoetida solution in 10 days interval.