Formulated T. harzianum conidia had a significant preventive effect against B. cinerea on wounded apple fruits compared to non-formulated T. harzianum conidia and control treatments . The diameter of typical Botrytis lesions on treated apple fruit was reduced significantly (Po0:05). In addition, the application of formulated T. harzianum conidia inhibited
Botrytis sporulation (no production of conidiophores) on the surface of typical Botrytis lesions, compared to the high density of Botrytis sporulation (>200 conidiophores per lesion) in both types of control treatments, and medium density of Botrytis sporulation
(50–199 conidiophores per lesion) in the treatment with non-formulated T. harzianum conidia