The consequences of field mouth attack, especially of Fusarium spp. bu
t also Alternaria spp. are yield losses and a significant decrease in
technological wheat quality that can go so far as to render its useles
s for processing. The aim of this work was to highlight field moulds a
s one of the causes of decreases in technological quality in Yugoslavi
a in the last two years to experts and a scientific public. In some lo
calities where harvest was investigated every year, a significant cont
amination by these microorganisms was registered. Beside visual evalua
tion that statement was confirmed by mycological and toxicological ana
lyses as well. By comparing:he results of infected samples with those
at the localities where there were no severe mould infections, a signi
ficant decrease in total technological wheat quality was proved, which
caused also the impossibility of bread production out of such kinds o
f wheat.