Overtreatment of Millwork: Is Control At the Log Pond Feasible?

The organism responsible for the development of highly porous areas in the sapwood of most western species, particularly ponderosa pine, has been identified as Bacillus polymyxa. It is not relegated to stagnant, highly contaminated ponds, but appears to be active in almost any environment in which logs are stored. Field tests indicated that chemical treatment of pond water with copper pentachlorophenate or Vancide 51 would inhibit bacterial activity for at least 2 months. The high cost of chemicals makes log-pond treatment too expensive. The application of a vacuum to stock that has absorbed abnormal quantities of a water-repellent preservative, as applied by a standard 3-minute dip, is not sufficiently effective to warrant the employment of a vacuum-salvage operation.

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