- Oregon State University. Agricultural Experiment Station37
- Oregon State University. Extension Service25
- Burts, Everett12
- Oregon State University. Forest Research Laboratory9
- Riedl, Helmut W.9
- James, Robert L.8
- Shearer, Peter W.8
- Fisher, Glenn C.7
- Jones, R. A.7
- Rice, R. E.7
- Southwest Oregon Forestry Intensified Research Program. Adaptive Phase7
- United States. Agricultural Research Service7
- United States. Forest Service. Northern Region. State & Private Forestry7
- Pacific Northwest Vegetable Insect Conference6
- van Steenwyk, Robert A.6
- Osu Forestry Alumni Association5
- Stebbins, Robert L.5
- Western Orchard Pest And Disease Management Conference5
- Beers, Elizabeth H.4
- Dewey, Jerald E.4