Lumber Values from Beetle-Killed Lodgepole Pine

The study of lodgepole pine attacked by mountain pine beetles (Dendroctonus ponderosae Hopk.) in the East Kootenay region of British Columbia, Canada, shows that positive conversion returns for lumber manufacture can be obtained unless trees have started to shed their bark and develop severe checking. Quality classes were derived using tree foliage characteristics as well as bark characteristics for trees dead many years. Trees with green and red foliage yielded similar values per 100 cubic feet of logs with positive conversion returns. Trees with no foliage but tight bark also yielded positive returns, but at a lower level. For trees sloughing bark the returns were negative.

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