Eleven commercial biocidal formulations were tested in the field to determine their effectiveness in protecting logs and lumber of Pinus elliottii sapwood from sap stain and molds. Among these formulations 2-(thiocyanomethylthio) benzothiazole showed the best performance in controlling both types of fungi. Potassium N-hydroxymethyl-N-methyl dithiocarbamate and the mixture potassium N-methyl dithiocarbamate plus ethylenediamine plus disodium cyanodithioymide-carbonate showed good effectiveness against sap stain fungi but failed to prevent mold growth.

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