A study of heart-rot in western hemlock /
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| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Agriculture,
1918.
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| Series: | Bulletin of the U.S. Department of Agriculture ;
no. 722. |
| Subjects: | |
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Table of Contents:
- Introduction. pp. 1.
- Present status of western hemlock in the trades. pp. 2.
- Echinodontium tinctorium : The fungus and its hosts
- Geographic distribution. pp. 3.
- The disease caused by Ecinodontium tinctorium : Outward signs of the disease
- General characteristics of the rot. pp. 6.
- Areas studied and field methods used. pp. 11.
- Methods used in presenting data. pp. 14.
- Infection age. pp. 16.
- Relation of decay to sigte and to age. pp. 18.
- Relation of decay to vigor, crown tating, size, and volume. pp. 22.
- Relation of decay to injury and to sporophores. pp. 24.
- Theory of infection. pp. 30.
- Discussion of results. pp. 51.
- Methods of control. pp. 34.
- Summary. pp. 36.