[4] Cercospora arachidicola only infects peanut plants, causing symptoms of brown lesions with chlorotic rings on the stems, leaves, and petioles.
Primary infection usually occurs after a period of rain, where the leaf is continually wet, and the pathogen thrives in areas of high relative humidity and moderate temperature (25-30 °C).
Conidia are the most important primary source of inoculum, and are produced on stromatic tissue of the adaxial leaf surface, infecting the leaves of the peanut plants.
[4] After analyzing the incidence and severity of the disease, strip-tillage techniques have also proven to be effective in delaying an epidemic by reducing the amount of initial infection.
Sources of resistance have been reported and prolong incubation and latent period by reducing the number of lesions per unit area of leaf surface, defoliation, and sporulation.