Cercospora penniseti
Fungus
Small, oval lesions with grey centers and dark margins appear on leaves and stem. On these lesions black and raised dots develop.
There is no alternative treatment for this disease. Implement preventive measures to reduce the risk of infection in subsequent growing seasons.
No chemical treatment is needed for this disease. Implement preventive measures to reduce the risk of infection in subsequent growing seasons.
High temperatures and high humidity favor the disease. The fungus is spread by wind and rain. It survives in crop residues and on alternative hosts like weeds. Yield losses are mostly small.