Mycotoxins and fungi accompanying wheat head fusariosis in Poland.

The occurrence of wheat head fusariosis in various regions of Poland was observed in 1985 and 1986. The incidence of fusariosis was usually low - about 0,01% - only on South - East in some localities reached 5 - 20%. The most important species isolated from infected heads were :Fusarium culmorum F.grami nearurn,F.ni vale andF.avenaceum, in addition to whichF.crookwel1ense,F.eqiseti,F.subqluti nans andF.tricinctum (sensu Nelson et al.1983) were observed. Deoxynivalenol was present in 100% examined kernels subsamples at level 5-18 mg/kg and 3-acetyl deoxyn i val enol in 70% at level 1-3 mg/kg. The mycotoxins amount in chaff was 1,4 to 2,6 and 1,4 to 11 times higher (DON and 3AcD0N resp.) than in kernels.