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Subjects
Diseases and pests, Control, Balsam woolly adelgid, Douglas fir, Research, Abies amabilis, Ambrosia beetles, Aphids, Conifers, Eggs, Fir, Forest management, Hemlock looper, Insect pests, Insecticides, Lumbering, Ponderosa pine, Seeds, Sitka spruce, Systemic insecticides, Western pine beetle, White pine weevilID Numbers
- OLID: OL2136623A
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August 19, 2008 | Edited by an anonymous user | fix author name |
April 1, 2008 | Created by an anonymous user | initial import |