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Sampling Western Spruce Budworm larvae by frequency of occurrence on lower crown branches
| Content Provider | Internet Archive |
|---|---|
| Author | Mason, Richard R Beckwith, R. C Pacific Northwest Research Station (Portland, Or.) |
| Organization | U.S. Department of Agriculture, National Agricultural Library |
| Language | English |
| Publisher | [Portland, Or. (319 S.W. Pine St., P.O. Box 3890, Portland 97208)] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station |
| Publisher Date | 1990-01-01 |
| Access Restriction | Open |
| Subject Keyword | Western spruce budworm Oregon Statistics Spruce Diseases and pests Oregon Statistics Western spruce budworm Spruce Statistics Sampling |
| Content Type | Text |
| Resource Type | Book |