CHAIN-SAW APPLICATION OF TRICHODERMA-HARZIANUM RIFAI TO REDUCE FUNGALDETERIORATION OF FRESHLY FELLED PINE LOGS

Billets of small-diameter roundwoods of Scots pine (Pinus sylvestris L .) were cut using a chain-saw with and without spores of Trichoderma i ncorporated in the chain-oil. The billets were left in the field for 1 2 weeks and then assessed for differences in wood permeability and col onisation by sapstain and decay fungi. Addition of Trichoderma spores to the chain-oil resulted in significantly reduced sapstain colonisati on and was associated with lower levels of decay fungi in the air-seas oned timber. The biological treatment had no detectable effect on wood permeability.