Figure 5.

Growth inhibition of nano-silver against Trichoderma viride on wood surface: (a) Variation of infection values of Trichoderma viride on wood surface with time under different nano-silver concentrations (correspond to retentions, shown in Figure 2); (b) Protection efficiency of nano-silver against Trichoderma viride on wood surface under different nano-silver concentrations; (c) Digital photos of Trichoderma viride on wood surface after 28-day growth under different nano-silver concentrations (in the same Petri dish: left—CK; right—nano-silver treated sample); (d) SEM morphologies of the surfaces of CK wood and the wood treated by nano-silver with 1000 ppm concentration after Trichoderma viride infection.