In laboratory experiments using petri-dishes and small wood blocks (30 x 10 x 5 mm³) 6 different isolates of Coniophora puteana strain BAM 15 were compared with strain FPRL 11E for growth rate and decay capability. Only the recently received strain from EMPA was suitably active giving 24% weight loss after 6 weeks compared with 38.1% for 11E. Collation of data from standard test records revealed all weight losses for 11E as exceeding 20% whereas only 11 of 21 results for BAM 15 exceeded 20 per cent.

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