In the second plant experiment, 45 ± 1.6% of the plants mulched with A. gallica-infected bark were infected by the pathogen;whereas 10 ± 1.4% of strawberry plants mulched with Armillariainfected bark and treated with T. atroviride SC1 showed Armillaria infection at 3 months after mulching (mean of 40 plants ± SE; values significantly different at p < 0.05). No infections were observed in the untreated control (plants mulched with sterile bark). All of the infected plants in the treatment in which A. gallica was present, but SC1 was not, showed symptoms of Armillaria infection (stunted, withering of leaves) in addition to signs of the presence of the pathogen (white mycelia in the crown, rhizomorphs
on the bark, in the peat layer and around crown). One strawberry plant died during the experiment as a result of Armillaria infection. Only 5 ± 1.4% of the T. atroviride SC1-treated plants showed reduced vigor due to A. gallica infection.