. the present work was carried out to
determine the efficacy of Trichoderma under natural conditions. In
this study, we find that the seed treatment of maize with
T. harzianum T22 reduces F. verticillioides infection and fumonisin
contamination under field conditions. Three years of field trials
* Corresponding author. Tel.: þ39 (0) 498272885; fax: þ39 (0) 498272890. have demonstrated this effect.