Reaction of durum wheat cv Yallaroi to crown and root rot caused by Fusarium graminearum Group 1 and Fusarium crookwellense

The comparative pathogenicity of Fusarium graminearum Group 1 and Fusarium crookwellense to the durum wheat cv. Yallaroi was studied in the greenhouse. F. graminearum Group 1 was shown to cause more severe above ground symptoms of crown rot and a higher incidence of infection than F. crookwellense at all the sampling dates. F. crookwellense did, however, cause some root and crown necrosis.