Preservative treatment of Eucalyptus saligna fence posts by the double-diffusion method
E S Lepage, A R De Freitas
Eucalyptus saligna fence posts treated by the double-diffusion method with two chemical combinations showed average lives of 11.2 years (copper sulphate and potassium dichromate at 10.5 kg/m³ retention)and of 14.3 years (copper sulphate and sodium mono-H arsenate at 7.1 kg/m³ retention), as determined in five test sites in the State of Sao Paulo, Brazil. The exponential model was the best fit when expressing average life by the Decay Index (DI) as a function of time.
Keywords: FENCE POSTS; DOUBLE DIFFUSION; EUCALYPTUS SALIGNA; DECAY INDEX; FIELD TEST; BRAZIL