It was found that F. culmorum and F. graminearum isolated from wheat w
ere also virulent to spring oats. The degree of infection differed in
the two years examined. Of the eight spring oat varieties examined 'Mu
resan' was less infected than the others. As the result of pathogen at
tack a substantial decrease was observed in thousand grain mass and in
germination, thus causing a considerable reduction in the value of th
e seed.