Pathogenic and Molecular Characterization of Brazilian Isolates of Sphaceloma manihoticola

Symptoms appeared on both cassava cultivars M Bra 703 (susceptible in the field) and M Bra 12 (resistant). M Bra 703 was susceptible to 68.4% of pathogen isolates, intermediately resistant to 26.3%, and tolerant of 5.3%. M Bra 12 was tolerant of 36.8% of isolates, intermediately resistant to 36.8%, and susceptible to 26.4% (Figure 1).