- Oregon State University. Extension Service11
- Oregon State University. College Of Forestry5
- Hall, Jim4
- Oregon State University. Agricultural Experiment Station3
- Adams, Jason S.2
- Chilcote, David O.2
- Duvall, Gillien N.2
- Fischer, Charles2
- Oregon State University2
- Osu Forestry Alumni Association2
- Osu Oregon Forestry Alumni Association2
- Pacific Northwest Vegetable Insect Conference2
- Pease, James R. (James Robert)2
- Salwasser, Hal2
- Silberstein, Thomas B.2
- United States. Forest Service2
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club2
- Wells, Gail2
- Williams, Gerald W.2
- Young, William C. (William Clyde)2