Abstract
The ability of mixtures of Basamid and metham sodium to produce methylisothiocyanate (MITC) in small blocks and sawdust of Douglas-fir (Pseudotsuga menziesii and southern pine (Pious spp.) was studied under varying moisture and temperature regimes. Mixtures of the two fumigants appeared to produce higher levels of MITC in small blocks than did the fumigants alone. Subsequent sawdust trials produced more variable results. MITC levels were similar for both wood species, and increased dramatically with increases in wood moisture content. Slight improvements in MITC levels were also noted with temperature increases. Addition of copper sulfate to the Basamid/metham sodium mixture resulted in increased MITC production early in the tests, but this effect diminished with time. The results suggest that mixtures of Basamid, metham sodium and copper sulfate could be used to provide a safer remedial treatment with the potential for both rapid initial and longterm control of fungal infestations.
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