- Oregon State University. Agricultural Experiment Station35
- Oregon State University. Forest Research Laboratory17
- Oregon State University. Extension Service13
- United States. Agricultural Research Service12
- Burgett, D. Michael10
- Walton, Vaughn M.8
- Campbell, John L.7
- Columbia Basin Agricultural Research Center7
- Liston, Aaron7
- Dreves, Amy J.6
- Et Al.6
- Gent, D. H.6
- Lachenbruch, Barbara6
- Maddison, David R.6
- Meinzer, Frederick C.6
- Pacific Northwest Insect Management Conference6
- Baer, Adela S., 1931 5
- Bruck, Denny J.5
- Eastern Oregon Agricultural Research Center5
- Lee, Jana C.5