- Oregon State University. Klamath Basin Research And Extension Center6
- Southern Oregon Agricultural Experiment Station6
- Columbia Basin Agricultural Research Center5
- Freitag, Michael5
- Horneck, Donald Arthur5
- Oregon State College. Agricultural Experiment Station5
- Anderson, Nicole P.4
- Crump, Byron C.4
- Heinrich, Aaron4
- Lutcher, L. K. (Lawrence K.)4
- Mellbye, Mark Edward4
- Norris, Charles, B. (Charles Brazer), 1894 4
- Oregon State College. Engineering Experiment Station4
- Oregon State University. Forest Research Laboratory4
- Oregon. Fish Commission4
- Pacific Northwest Cooperative Extension4
- Pacific Northwest Insect Management Conference4
- Petrie, S. E.4
- Sherr, Barry F.4
- Sherr, Evelyn4