Both in vitro and greenhouse experiments
were conducted. In vitro, T. longibrachiatum at the concentrations of 1.5 104 to 1.5 108 spores per
ml had a strong parasitic and lethal effect on the cysts of H. avenae, with the concentration of 1.5 108
spores per ml having >90% parasitism 18 days after treatments. In greenhouse, T. longibrachiatum
inoculation decreased H. avenae infection in wheat (Triticum aestivum) significantly.