New ideas about fusarioses of flax.
In Czechoslovakia the disease is always caused by a complex of Fusarium sp.; F. avenaceum predominates at an early phase, F. [oxysporum f.sp.] lini at flowering and F. avenaceum and F. gibbosum [F. equiseti] at ripening. Five groups of varietal reactions are distinguished with resistance or susceptibility at different phases.