Freshly cut and sawn Pinus elliottii timber was dipped in four concentrations of Antiblue (active ingredient sodium pentachlorophenate) and Biucide TT (local substitute), at four immersion times and stacked in the open at Chisengu sawmill. Five weeks later, the timber was assessed for the incidence and intensity of stain and mould. The results showed that Antiblue was the better chemical providing 91% and complete control at 2% and 3% concentrations respectively. Biocide TT provided 74% control at a concentration of 8% and almost complete control at 12% concentration. The incidence and intensity of stain and mould was not affected by the immersion period

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