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Effect of mixtures of carbon disulfide and methylisothiocyanate on survival of wood-colonizing fungi

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  • The fungitoxicity of carbon disulfide (CS2), methylisothiocyanate (MITC), or a mixture of these two gases, to selected wood-degrading fungi was studied by using a fumigation apparatus. Both gases are important decomposition products of metham sodium, the most commonly used fumigant for internal treatment of large wood members. Carbon disulfide (up to 8,000-9,000 ppm) was mildly toxic to most of the test fungi, and MITC (up to 18 ppm) was uniformly toxic. A combination of sublethal levels of both gases (3,000-4,000 ppm CS2/5 ppm MITC) was more toxic than either chemical alone. The results suggest a synergism between various metham sodium decomposition products, and this interaction may account for the protection afforded by this treatment. Further studies of other decomposition products are suggested.
  • Keywords: methylisothiocyanate, fumigant, fungitoxicity, metham sodium, carbon disulfide
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  • Canessa, Edwin F., and Jeffrey J. Morrell. 1995. effect of mixtures of carbon disulfide and methylisothiocyanate on survival of wood-colonizing fungi. Wood and Fiber Science, 27(3): 207-224.
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  • 27
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  • 3
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