IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 21: Report of eighth inspection (7 years) in Australia
L J Cookson, J E Barnacle
This report tabulates the seven year (86 month) inspection results, obtained on 28 Fabruary l985, of the IRG/COIPM International Marine Test at Goat Island, Australia. This test was installed in December 1977. The results are given in Tables 1-6. Table 7 lists the number of marine borers identified from blocks (2 cm and 6 cm long respectively) cut from the ends of specimens removed at the previous inspection, i.e. after 72 months. At that inspection the central portion of the specimens removed from test were used for chemical analysis, and bacterial and soft rot assessment by various IRG researchers. Limnoria quadripunctata has been previously identified from other timbers treated with copper-containing preservatives (Barnacle et al., 1983). Limnoria indica had not been identified previously from Australia, and this occurrence together with additions to the description of the borer, will be given by Cookson (in preparation).