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Chapter 13,513

Studies in wood decay. VI. The effect of arsenic, zinc, and copper on the rate of decay of wood by certain wood-destroying fungi

Kaufert, F.; Schmitz, H.

Phytopath 27(7): 780-788

1937


Accession: 013512326

The addition of low concns. of arsenic trioxide to Norway pine sawdust appears to stimulate its decay by Lenzites trabea and by L. lepideus; even the lowest concn. tested, 50 ppm, appeared to be toxic to Trametes serialis and Polyporus anceps. ZnCl2 at concns. of from 100 to 400 ppm appeared to increase the rate of decay of Norway pine sapwood sawdust by Lenzites trabea and Lentinus lepideus. Concns. above 400 ppm appeared to be toxic to both fungi. The results with CuSO4 are inconclusive insofar as showing a significant increase in the rate of decay of Norway pine sap-wood by Lenzites trabea and Lentinus lepideus is concerned. It appears that Lentinus lepideus is considerably more resistant to CuSO4 than Lenzites trabea, but the latter fungus is by far the more resistant to As trioxide.

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