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Publication Information

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Title: Heart Rots of Red and White Firs

Author: Kimmey, J.W.; Bynum, H.H. Jr.;

Date: 1961

Source: Forest Pest Leaflet 52. [Ogden, UT:] U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station

Publication Series: Miscellaneous Publication

Description: Heart rots, caused by fungi that attack the heartwood of living trees, are responsible for the greatest volume loss sustained by California red fir (Abies magnifica A. Murr.) and white fir (A. concolor (Gord. and Glend.) Lindl.). These two firs comprise 25 percent of the commercial timber of California. More than 13 percent of the volume in these firs is useless cull because of heart rots. In red fir this loss amounts to about 10 percent and in white fir about 15 percent of the gross merchantable volume. Thrifty, uninjured young fir trees are generally free from heart rots, but old over-mature trees are frequently so badly decayed they are worthless for lumber manufacture.

Keywords: Fungi, decline, mortality.

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Kimmey, J.W.; Bynum, H.H. Jr. 1961. Heart Rots of Red and White Firs. Forest Pest Leaflet 52. [Ogden, UT:] U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station


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