- Oregon State University. Extension Service23
- Oregon State University19
- Oregon State University. Agricultural Experiment Station16
- Southern Oregon Agricultural Experiment Station14
- Westigard, Peter H.13
- Oregon State University. Registrar's Office10
- Pacific Northwest Insect Management Conference8
- Oregon State University Libraries And Press6
- Benoit Bird, Kelly J.5
- Et Al.5
- Vanbuskirk, Philip5
- Western Orchard Pest And Disease Management Conference5
- Brook, Edward J.4
- Corp, Mary K.4
- Finn, Chad Elliott4
- Rohrmann, George F.4
- Spatafora, Joseph W.4
- Beers, Elizabeth H.3
- Blunier, T.3
- Chappellaz, J.3