Comparison of decay rates of preservative-treated stakes in field and fungus cellar tests. Results after 40 months fungal cellar exposure

IRG/WP 2200

M E Hedley

Decay rates of preservative-treated Pinus radiata stakes during 40 months exposure in the FRI fungus cellar were compared with those of similarly treated material in a field test. Decay rates in the fungus cellar were from 4 to 100 times higher than in the field, although for the majority of preservatives the rate was between 7 and 12 times higher. The lag phase before onset of decay, noticeable with most of the preservatives in the field test, was largely eliminated in the fungus cellar. Possible reasons are given for inconsistencies in relative rates of decay of preservatives in the two tests.


Keywords: FIELD TEST; FUNGUS CELLAR; LAG PHASE; NEW ZEALAND; DECAY RATES; PINUS RADIATA; PRESERVATIVES; TIME TO REACH 50% SOUNDNESS

Conference: 83-05-09/13 Surfers Paradise, Queensland, Australia


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