This work aimed to evaluate the health quality of black oat seeds (Avena strigosa
Schreb.) produced in the Rio Grande do Sul State, Brazil. 81 seed lots from 16 different countries
were evaluated. Blotter test was used based with 400 seeds by lot. The fungi detected in the seeds
were: Alternaria sp., Chaetomium sp., Cladosporium sp., Colletotrichum sp., Curvularia sp.,
Epicoccum sp., Nigrospora sp., Colletotrichum sp., Fusarium sp. and the storage fungi Aspergillus
sp. and Penicillium sp. were detected. The highest mean incidence was observed to Phoma sp.
and Bipolaris spp. with 18.4 and 22.4%, respectively. It was concluded that it must be taken a best
management of this forage to reduce seed contamination.