The objective of this study
was to obtain damage functions for models of critical, to relate
damage by simultaneous occurrence of blast, brown spot and
scald spot with grain yield harvests in 2011/12 and 2012/2013, in
Rio do Oeste, Santa Catarina State, Brazil. Gradient of diseases
intensity was generated by number of applications and fungicides
rates. Design was a randomized block with four replications
and six treatments consisting of mixing fungicide applications
of triazole (difenoconazole) and strobilurin (azoxystrobin)