Pyraziflumid is a fungicide. Pyraziflumid is a novel member of succinate dehydrogenase inhibitor fungicides (SDHI). The average EC50 value was 0.0561 (±0.0263)μg ml for mycelial growth. There was no cross-resistance between pyraziflumid and the widely used fungicides carbendazim, dimethachlon and the phenylpyrrole fungicide fludioxonil.