Several Fusarium species are involved in Fusarium Head Blight (FHB), which reduces both crop yield and quality in cereals. FHB is among the most important fungal diseases of cereals worldwide.

The genus Fusarium was established by Link in 1809. Traditional identifi cations and classifi cations of Fusarium species have been used for grouping isolates to species and grouping species according to shared morphological characteristics. During the last years researchers have started to use alternative ways for species identifi cation and classifi cation based on molecular data and phylogenetic analyses. Th is has totally revised fungal taxonomy. Th e best way to identify and classify Fusarium isolates is the polyphasic approach by using all available characters.