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Laboratory evaluation of potential antisapstain treatments for Pinus radiata
1983 - IRG/WP 3237
Twelve formulations were tested in the laboratory using a 'mini' board test for effectiveness on Pinus radiata (D. Don) against sapstain, mould and decay fungi. Three formulations, sodium pentachlorophenoxide (NaPCP) plus borax, Haipen 50 WP, and Mitrol 375, are used commercially in New Zealand. Busan 1009 (0.5% product), IWD Product A (0.2% ai), IWD Product B (0.3% ai), Fennotox...
J A Drysdale


Commercially available anti-sapstain chemicals in New Zealand - An update
1987 - IRG/WP 3416
Six anti-sapstain chemicals or mixtures (NaPCP plus borax, Haipen 5F, Mitrol PQ375, Busan 1009, Protek S, Pinefol 50W) are available as commercial treatments in New Zealand. A further two (Hylite 20F and Isothon-35) have shown potential in field and mill trials and will be available for use. A number of other formulations are under evaluation....
J A Drysdale


The preliminary evaluation of selected sulfonium salts for use in wood preservation
1984 - IRG/WP 3278
Five sulfonium compounds, including two sulfonium methosulfates, one sulfonium bromide and two amphoteric sulfonium propanesulfonates, were prepared in crude form and subjected to various biocidal screening tests. A rapid screening test in which treated Pinus radiata pulp pellets were exposed to one of three wood-decaying fungi growing on malt agar revealed that dodecyl dimethyl sulfonium methosul...
D V Plackett


A field trial to assess the potential of antisapstain chemicals for long-term protection of sawn radiata pine
1986 - IRG/WP 3375
Seven chemical formulations were tested as antisapstain treatments for freshly sawn radiata pine sapwood (90x50 mm²). Each formulation was used with and without a water-repellent additive and was sprayed on to 1 m long boards. The boards were then stacked into "mini" packets and stored unprotected from the weather for 6 months. Haipen 50w (at 0.2 or 0.4% active) and NaPCP (1% active) plus 1.5% bo...
J A Drysdale