Widespread resistance to QoIs, DMI and SDHIs fungicides has been reported for Brazilian populations of the wheat blast pathogen Pyricularia oryzae Triticum lineage (PoTl). A pre-existing mechanism not associated with target site mutations indicated DMIs SDHIs, strong indication that PoTl multidrugresistance (MDR). Therefore, main objective this study was test hypothesis SDHI detected in due eff...